IP Privilege Protection Checklist: Communication Hygiene, Agent Privilege, Common Interest, Opinion Waiver, and Production Controls

By Casey Scott McKay · 2024-07-15

This checklist runs the privilege questions that arise in IP practice, in the order they arise. It starts with the communication habits that determine whether a claim exists at all, then works the clearance and freedom-to-operate workflow, the patent agent file segregation that Queen's University makes worthwhile, and the opinion counsel separation that preserves the Seagate boundary. It covers common interest execution, transaction staging, and clean teams; then the discovery machinery of Rule 502 orders, clawback protocols, categorical logs, and holds. Gates mark the points where a step must be completed before material is shared, an opinion is commissioned, or a production is made.

IP and Technology > General IP | Checklist | Published 15 July 2024 - Updated 25 September 2024 | Casey Scott McKay - marksy.us

Summary. This checklist runs the privilege questions that arise in IP practice, in the order they arise. It starts with the communication habits that determine whether a claim exists at all, then works the clearance and freedom-to-operate workflow, the patent agent file segregation that Queen's University makes worthwhile, and the opinion counsel separation that preserves the Seagate boundary. It covers common interest execution, transaction staging, and clean teams; then the discovery machinery of Rule 502 orders, clawback protocols, categorical logs, and holds. Gates mark the points where a step must be completed before material is shared, an opinion is commissioned, or a production is made.

Keywords: privilege checklist · communication hygiene · Upjohn warning log · dual purpose test · patent agent segregation · clearance workflow · opinion counsel separation · advice of counsel election · subject matter waiver · common interest execution · transaction staging · clean team · Rule 502 order · clawback notice · categorical privilege log · litigation hold · Kovel engagement · prosecution bar · cross border privilege · designation sampling

How to use this checklist

| Phase | What it covers | |---|---| | 1 | Communication hygiene | | 2 | Upjohn and interviews | | 3 | Clearance and FTO workflow | | 4 | Patent agent files | | 5 | Prosecution and candor | | 6 | Opinion counsel | | 7 | The reliance election | | 8 | Common interest agreements | | 9 | Transactions | | 10 | Investigations | | 11 | Litigation holds | | 12 | Rule 502 orders | | 13 | Clawback protocol | | 14 | Privilege logs | | 15 | Third-party subpoenas | | 16 | Cross-border | | 17 | Experts and consultants | | 18 | Regulators, auditors, insurers | | 19 | Training and assurance | | 20 | Programme cadence |

Boxes marked [Gate] must clear before material is shared, an opinion is commissioned, or a production is made.

The matter. A company received a demand letter and set out to build a willfulness defence. The engineer's three-year-old email saying "I think their claim 1 reads on us" was produced. The clearance search commissioned directly by the product team was produced. The opinion, commissioned late from trial counsel, opened a waiver that reached both. Every one of those was preventable at zero cost.

Phase 1. Communication hygiene

[ ] [Gate] Separate legal analysis from business direction.
- Why. Courts ask about the communication's primary purpose, and mixed messages invite the argument.
- Trap. "Here's my read and here's what we should do about the launch" in one email.
[ ] State the request for legal advice explicitly.
- Why. Purpose is an element, and an express statement is the cleanest evidence of it.
- Trap. Subject lines reading "FYI" on requests for advice.
[ ] Use the privilege legend only where it applies.
- Why. Universal marking signals unconsidered designation and damages the whole log.
- Trap. Templates that apply the legend automatically to every outbound message.
[ ] Do not copy counsel to create privilege.
- Why. It does not work, and courts notice the pattern.
- Trap. A culture in which the general counsel is on every distribution list.
[ ] Restrict distribution of legal advice to those who need it.
- Why. Confidentiality is an element, and broad internal circulation weakens it.
- Trap. Forwarding an opinion to the sales team.
[ ] Cover informal channels in the policy.
- Why. Chat, comments, and tickets are all discoverable and are where unguarded statements live.
- Trap. A policy that addresses email only.

Phase 2. Upjohn and interviews

[ ] [Gate] Give the warning at the start of every employee interview.
- Why. Upjohn Co. v. United States supports corporate privilege beyond the control group, and the warning establishes whose privilege it is.
- Trap. An employee who believed counsel was their lawyer, raised at the moment they become adverse.
[ ] Log that the warning was given, with date and interviewer.
- Why. The record is the proof.
- Trap. Reconstructing it from memory two years later.
[ ] Address former employees separately.
- Why. Treatment varies by circuit and the protection is weaker.
- Trap. Assuming the same rules apply.
[ ] Record that the interview was for the purpose of legal advice.
- Why. Purpose is an element for both privilege and work product.
- Trap. Interview notes that read as fact-gathering for a business decision.

Phase 3. Clearance and FTO workflow

[ ] [Gate] Counsel commissions the search and the vendor reports to counsel.
- Why. A search run by the business is neither privileged nor work product.
- Trap. A product manager with a vendor account and a budget code.
[ ] Counsel produces the analysis; the business receives conclusions.
- Why. The advice is protected; the raw search file may not be.
- Trap. Circulating the vendor's report internally.
[ ] State the purpose in the engagement, including anticipated litigation where applicable.
- Why. Federal Rule of Civil Procedure 26(b)(3) protection turns on why the document was created.
- Trap. A pre-launch clearance in the ordinary course, later argued to be work product.
[ ] Finish every analysis started.
- Why. A half-analysis establishes notice without a defence.
- Trap. A memorandum that flags a risk and awaits instructions that never come.
[ ] Watch the notice consequences.
- Why. Knowledge drives the damages start under 35 U.S.C. § 287 and the willfulness narrative under 35 U.S.C. § 284 after Halo Electronics v. Pulse Electronics.
- Trap. An informal competitor patent review with no legal involvement.
[ ] Apply a retention schedule consistently.
- Why. Systematic destruction before any hold is legitimate.
- Trap. Selective destruction after a hold attaches, which is spoliation under Federal Rule of Civil Procedure 37(e).

Phase 4. Patent agent files

[ ] [Gate] Segregate agent communications by function.
- Why. In re Queen's University at Kingston protects communications in furtherance of the agent's authorised practice, not everything an agent writes.
- Trap. A single agent mailbox containing prosecution advice and third-party patent opinions.
[ ] Route non-prosecution questions to attorneys.
- Why. Opinions on a competitor's patent are outside the agent privilege.
- Trap. Asking the agent who knows the technology best.
[ ] Treat foreign agent communications as less protected.
- Why. US treatment of foreign agents in district court is uneven.
- Trap. A foreign associate's candid analysis in a US-discoverable file.
[ ] Document non-lawyer IP staff as acting for counsel.
- Why. United States v. Kovel supports the extension where they facilitate legal advice.
- Trap. Docketing and portfolio management performed as an independent business function.

Phase 5. Prosecution and candor

[ ] Route invention records through counsel for patentability advice.
- Why. In re Spalding Sports Worldwide holds such a record privileged in its entirety.
- Trap. Assuming the technical content is severable and producible.
[ ] Document the materiality analysis contemporaneously.
- Why. 37 C.F.R. § 1.56 imposes the duty, and a contemporaneous reasoned judgment answers a later intent allegation under Therasense v. Becton, Dickinson.
- Trap. Close calls decided verbally and reconstructed years later.
[ ] Cite generously and cross-cite across the family.
- Why. Over-citation costs examiner attention; under-citation costs an inequitable conduct trial.
- Trap. A family where art cited in one application was never considered for the siblings.
[ ] Name an owner for litigation-prosecution coordination.
- Why. The duty continues while related applications are pending, and art surfacing in litigation is frequently material.
- Trap. Two teams each assuming the other is handling it.
[ ] [Gate] Assess crime-fraud exposure before asserting privilege over prosecution communications.
- Why. The threshold for in camera review is lower than the threshold for the exception, so even weak allegations put files before the court.
- Trap. Discovering the exposure in the reply brief.

Phase 6. Opinion counsel

[ ] [Gate] Engage opinion counsel separate from trial counsel before any opinion work begins.
- Why. In re Seagate Technology keeps trial counsel's work product outside the waiver absent exceptional circumstances.
- Trap. Asking the litigators for a quick view, which contaminates the boundary.
[ ] Provide complete facts, including adverse ones.
- Why. An opinion that omits adverse facts is an exhibit for the other side.
- Trap. A curated fact set assembled to produce a favourable answer.
[ ] Require claim construction and element-by-element analysis.
- Why. Conclusory opinions carry no weight and still waive.
- Trap. A two-page letter with a conclusion and no reasoning.
[ ] Date it contemporaneously and restrict distribution.
- Why. Reliance requires the advice to have been received before the conduct.
- Trap. An opinion dated after the launch.
[ ] Write a protocol preventing exchange between opinion and trial counsel.
- Why. The separation must be real, not nominal.
- Trap. Shared document repositories.

Phase 7. The reliance election

[ ] [Gate] Decide deliberately, at the scheduled election.
- Why. It is one of the few genuinely strategic privilege decisions available.
- Trap. Drifting into reliance through witness testimony without having decided.
[ ] Map the subject matter that would be waived.
- Why. In re EchoStar Communications extends waiver to communications on the subject and work product communicated to the client.
- Trap. Discovering after election that the subject contains three years of unfavourable email.
[ ] Remember there is no adverse inference from silence.
- Why. 35 U.S.C. § 298 forbids using the absence of advice to prove willfulness or intent to induce.
- Trap. Asserting reliance defensively because the client fears the inference.
[ ] Weigh the enhancement exposure.
- Why. 35 U.S.C. § 284 permits up to treble damages, discretionary after Halo Electronics v. Pulse Electronics and reserved for egregious conduct.
- Trap. Trading a broad waiver for protection against an enhancement risk that was never realistic.

Phase 8. Common interest agreements

[ ] [Gate] Execute before sharing anything.
- Why. Material disclosed before the agreement exists is disclosed without protection.
- Trap. An agreement signed a week after the first call.
[ ] State the common legal interest with specificity.
- Why. A shared commercial interest is not enough in most courts.
- Trap. A recital reciting the parties' desire to do a deal.
[ ] Check the applicable circuit's requirement for anticipated litigation.
- Why. Circuits differ, and several require litigation actual or anticipated.
- Trap. Relying on the most permissive rule when the forum is uncertain.
[ ] Restrict exchange to counsel-to-counsel and require marking.
- Why. It creates a record of what was covered.
- Trap. Business-to-business exchange of privileged analysis.
[ ] Include the no-unilateral-waiver and divergence provisions.
- Why. Divergence is the expected outcome, and these are the clauses that matter then.
- Trap. A template with confidentiality obligations and nothing about what happens when one party settles.
[ ] Log what was shared, when, and with whom.
- Why. The log is what allows the claim to be asserted and defended later.
- Trap. No record, so the scope of the shared set is contested.

Phase 9. Transactions

[ ] [Gate] Stage the disclosure. Public and non-privileged first; redacted summaries second; privileged analysis last.
- Why. Most deals die, and material disclosed to a party that walks away was disclosed to a stranger.
- Trap. Full disclosure in the first data room to demonstrate good faith.
[ ] Move the sensitive set counsel-to-counsel with no copies retained.
- Why. It limits the disclosure and creates a controllable record.
- Trap. PDF downloads with no download controls.
[ ] Do not post opinions in the data room.
- Why. A data room is publication to everyone with access, including advisers adverse in other matters.
- Trap. Freedom-to-operate analyses uploaded because the buyer asked.
[ ] Use a clean team where the counterparty is a competitor.
- Why. It addresses privilege and competition concerns together.
- Trap. Commercial teams reviewing technical and legal analysis.
[ ] [Gate] Allocate privilege expressly in the agreement.
- Why. In a stock purchase the privilege generally follows the entity; in an asset purchase it does not unless stated.
- Trap. A buyer who cannot access pre-closing files it needs for a post-closing dispute.
[ ] Segregate acquired privileged files post-closing.
- Why. Migration into the acquirer's general records makes them discoverable in unrelated litigation.
- Trap. Integration teams merging repositories without review.

Phase 10. Investigations

[ ] [Gate] Engage forensic vendors through counsel, documented in the engagement letter.
- Why. United States v. Kovel supports treating counsel's agents as within the privilege.
- Trap. IT running the examination first and counsel being brought in afterwards.
[ ] State the anticipation of litigation contemporaneously.
- Why. Federal Rule of Civil Procedure 26(b)(3) turns on why the material was prepared.
- Trap. A declaration asserting anticipation with no contemporaneous record.
[ ] Keep ordinary-course security work separate from the investigation file.
- Why. Routine monitoring is a business function and is not protected.
- Trap. A single folder containing both.
[ ] Preserve device images and access logs.
- Why. They are the evidence in a trade secret matter and the reasonable-measures proof under 18 U.S.C. § 1836.
- Trap. Reimaging a departing employee's laptop for reissue.
[ ] Plan what an ex parte seizure affidavit reveals.
- Why. The affidavit necessarily describes the investigation.
- Trap. Filing without considering the disclosure consequences.

Phase 11. Litigation holds

[ ] [Gate] Issue promptly when litigation is reasonably anticipated.
- Why. Federal Rule of Civil Procedure 37(e) governs failure to preserve, and intent-to-deprive sanctions are severe.
- Trap. Waiting for the complaint.
[ ] Identify custodians and systems specifically.
- Why. A generic hold reaches nothing in practice.
- Trap. A company-wide email that names no systems.
[ ] Suspend retention schedules and auto-deletion.
- Why. Automated deletion continues unless affirmatively stopped.
- Trap. Ephemeral messaging tools left running.
[ ] Confirm receipt and re-confirm periodically.
- Why. Acknowledgement is the evidence of a functioning hold.
- Trap. Issued once, never refreshed, custodians changed.
[ ] Release holds deliberately when matters close.
- Why. Indefinite holds accumulate data that must later be reviewed and produced.
- Trap. No release process, so every hold is permanent.

Phase 12. Rule 502 orders

[ ] [Gate] Request a standalone Rule 502(d) order at the first scheduling conference.
- Why. Federal Rule of Evidence 502 permits an order under which disclosure does not waive in that or any other proceeding.
- Trap. Burying it in the protective order, where its scope can be argued to be conditioned.
[ ] Do not condition it on reasonable steps.
- Why. Conditioning reimports the subsection (b) fight the order was meant to eliminate.
- Trap. A form order with "provided the producing party took reasonable steps" inserted.
[ ] Note that appeal is unavailable.
- Why. Mohawk Industries v. Carpenter forecloses collateral order review of adverse privilege rulings.
- Trap. Relying on appellate correction rather than front-loading the protections.
[ ] Understand subject matter waiver limits.
- Why. Rule 502(a) confines it to communications on the same subject that ought in fairness to be considered together.
- Trap. Treating one produced email as opening a category by default.

Phase 13. Clawback protocol

[ ] Agree notice, sequestration, and non-use pending resolution.
- Why. The mechanics are what make the order operative.
- Trap. A clause requiring return but permitting continued use pending a motion.
[ ] Extend the obligation to derived work product.
- Why. Attorney notes, database excerpts, and preparation materials all carry the content forward.
- Trap. Returning the document while the excerpt stays in the review platform.
[ ] Cover experts and consultants who received the material.
- Why. The notice obligation has to reach everyone who holds a copy.
- Trap. A testifying expert who considered the material, which raises a separate disclosure question.
[ ] Permit challenge without disclosing content.
- Why. A challenge procedure requiring the recipient to describe the document defeats the point.
- Trap. In camera submissions made by the wrong party.
[ ] Impose prompt notice on the producing party.
- Why. Sitting on knowledge of a disclosure weakens the position even under a 502(d) order.
- Trap. Discovering the disclosure during deposition preparation and saying nothing.

Phase 14. Privilege logs

[ ] [Gate] Negotiate categorical logging in the discovery protocol.
- Why. Document-by-document logging of a modern collection is disproportionate and courts increasingly say so.
- Trap. Agreeing to a document-by-document log before appreciating the collection size.
[ ] Write descriptions sufficient to assess the claim.
- Why. Federal Rule of Civil Procedure 26(b)(5) requires it without revealing the protected information.
- Trap. A thousand identical entries reading "email regarding legal advice."
[ ] Differentiate entries.
- Why. Identical descriptions invite an order to re-log.
- Trap. Automated description generation from metadata alone.
[ ] Expect sampling and extrapolation.
- Why. Courts review a sample where over-designation is suspected and treat the whole set accordingly.
- Trap. Weak designations left in the set on the assumption they will not be reached.
[ ] Log common interest material as such.
- Why. The basis asserted should match the facts.
- Trap. Logging shared material as attorney-client without noting the disclosure.

Phase 15. Third-party subpoenas

[ ] Instruct vendors, consultants, and former counsel who receive subpoenas.
- Why. Federal Rule of Civil Procedure 45 requires privilege claims to be described, and a third party will not assert the client's privilege unprompted.
- Trap. A vendor producing counsel's instructions without notice.
[ ] Include a notification obligation in vendor engagements.
- Why. The client needs to know before the return date.
- Trap. Learning about the production from the other side's exhibit list.
[ ] Consider whether the third party needs its own counsel.
- Why. Their interests may diverge, particularly for former counsel.
- Trap. Directing a third party's response in a way that creates a conflict.
[ ] Track what has been produced by third parties.
- Why. Cumulative third-party productions can effect the waiver a careful client avoided directly.
- Trap. No visibility into what the vendor produced.

Phase 16. Cross-border

[ ] [Gate] Determine whether in-house privilege is recognised in each relevant jurisdiction.
- Why. Several major jurisdictions do not recognise it at all.
- Trap. Sensitive analysis sitting in an in-house file that is seizable.
[ ] Route sensitive matters through external counsel where in-house privilege is unavailable.
- Why. It is the only reliable protection in those jurisdictions.
- Trap. A global template assuming US rules.
[ ] Keep files separated by jurisdiction.
- Why. Circulation into a low-protection jurisdiction can expose material protected elsewhere.
- Trap. A single global document management repository with open access.
[ ] Anticipate Section 1782 applications.
- Why. 28 U.S.C. § 1782 permits US discovery in aid of foreign proceedings, reaching US affiliates.
- Trap. Assuming a low-discovery forum insulates the group.
[ ] Settle the cross-border transfer mechanism before collection.
- Why. Data protection rules govern moving documents for review.
- Trap. Collecting first and resolving the transfer question under deadline pressure.

Phase 17. Experts and consultants

[ ] Distinguish consulting from testifying experts at engagement.
- Why. Federal Rule of Civil Procedure 26(b)(4) protects non-testifying consulting experts absent exceptional circumstances, and protects drafts and most communications with testifying experts.
- Trap. A consulting expert converted to a testifying role, carrying their whole file with them.
[ ] Control what testifying experts consider.
- Why. Materials considered are disclosable even where communications are protected.
- Trap. Sending the entire case file to the expert.
[ ] Require undertakings before access to protected material.
- Why. Protective orders condition expert access on disclosure and objection periods.
- Trap. Access granted before the objection period runs.
[ ] Address prosecution bars.
- Why. Exposure to an adversary's confidential technical information typically triggers a bar on participating in prosecution.
- Trap. Staffing a matter with the same people who prosecute the client's portfolio.

Phase 18. Regulators, auditors, insurers

[ ] [Gate] Assume voluntary production to a regulator waives as to third parties.
- Why. Selective waiver is not widely recognised, and confidentiality undertakings with the agency generally do not preserve privilege against private litigants.
- Trap. Producing counsel's investigation report to secure cooperation credit.
[ ] Use the negotiated protocol for auditor requests.
- Why. Response letters follow an established convention precisely because full disclosure would waive.
- Trap. Providing counsel's litigation assessment directly.
[ ] Check the jurisdiction before sharing an assessment with an insurer.
- Why. Treatment varies, and some jurisdictions treat the insurer as sharing a common interest while others do not.
- Trap. A reservation of rights letter that makes the insurer adverse, followed by continued sharing. See Who Pays for the IP Lawsuit?.
[ ] Log everything shared externally.
- Why. The cumulative record of external disclosures determines the waiver argument.
- Trap. No central record, so nobody can answer what was shared with whom.

Phase 19. Training and assurance

[ ] Deliver an hour of training annually to engineering, product, and IP staff.
- Why. The document that creates the problem is written by a non-lawyer, and training is the only intervention that reaches them.
- Trap. Training legal and assuming it propagates.
[ ] Use the company's own documents as examples.
- Why. Recognition drives retention.
- Trap. Generic slides about a fictional company.
[ ] Sample designations annually and assess survivability.
- Why. It is the only way to learn how the programme performs before an adversary does.
- Trap. No baseline, so no way to tell whether anything improved.
[ ] Run a post-mortem after every privilege dispute.
- Why. The feedback loop is where the programme actually improves.
- Trap. Treating each dispute as bad luck.
[ ] Measure coverage and compliance.
- Why. Training coverage, clearance workflow compliance, 502(d) order coverage, and hold currency are the four numbers that predict outcomes.
- Trap. A programme with policies and no metrics.

Phase 20. Programme cadence

[ ] On every new matter. Hold issued, 502(d) order requested, log protocol raised, opinion counsel separation confirmed if an opinion is contemplated.
[ ] Monthly. New custodians added to active holds; departures reviewed for preservation.
[ ] Quarterly. Designation sampling; clearance workflow compliance check; hold currency review; common interest log review.
[ ] Semi-annually. Policy review; template refresh for common interest, 502(d), clawback, and hold notices.
[ ] Annually. Training delivery and coverage measurement; cross-border privilege review; post-mortem summary to the general counsel.
[ ] On any transaction. Staging plan agreed; common interest executed before sharing; privilege allocation drafted into the agreement.
[ ] On any acquisition close. Acquired privileged files segregated; access restricted; integration reviewed.

Phase 21. Three worked scenarios

Scenario A — the engineer's email. Three years before suit, an engineer wrote "I looked at their patent and I think claim 1 reads on our product." No lawyer involved, so nothing is privileged, and the document establishes knowledge for both the notice date under 35 U.S.C. § 287 and the willfulness narrative under 35 U.S.C. § 284. The only intervention that would have prevented it is training, delivered before the email was written. The remaining move is to build the countervailing record: a complete, contemporaneous analysis by counsel that reaches a reasoned conclusion, so that the engineer's speculation is not the only evidence of the company's state of mind.

Scenario B — the diligence disclosure. A prospective acquirer asks for the freedom-to-operate analysis. The deal team, keen to demonstrate good faith, uploads it to the data room on a Friday. The deal collapses six weeks later. The analysis has been disclosed to a party that is now a competitor, without a common interest agreement, in a repository accessed by four advisory firms. The waiver is complete and unfixable. What should have happened: a counsel-to-counsel summary, after an executed agreement, with no copies retained, and only once the deal was advanced enough to justify it.

Scenario C — the late opinion. Two weeks before the willfulness election, the client asks trial counsel for an opinion. Trial counsel writes it. The client asserts reliance. The waiver now reaches trial counsel's analysis on that subject, because the In re Seagate Technology separation was never established, and the opinion's late date undermines reliance in any event. Both problems were avoidable at the moment the demand letter arrived, by engaging separate opinion counsel in the first week.

Phase 22. Scoping and the client conversation

[ ] Ask what the client is actually worried about. Willfulness exposure, a trade secret investigation, a transaction, or a general programme. The work differs.
[ ] Say early that historical review rarely helps. Reviewing old files consumes the budget the forward-looking work needs and changes few outcomes.
[ ] Say early that training is the highest-return step. Clients expect a legal answer; the answer is an hour with the engineering team.
[ ] Set the proportion. A programme that makes people afraid to write produces worse decisions and a culture that routes around legal.
[ ] Identify the categories that matter. Clearance analyses, opinions, competitor patent reviews, departure investigations, and prosecution materiality communications. Everything else is noise.
[ ] Agree the metrics that will show whether the programme is working, before implementing it.

Phase 23. The one-paragraph brief

Privilege posture — [matter], [date]. Categories at issue: [list]. Bases asserted: attorney-client for [set]; work product for [set], prepared because of [proceeding], designated [ordinary / opinion]; patent agent privilege for [N] documents within the Queen's University scope. Advice of counsel: [not asserted / asserted (date)], opinion counsel separated since [date], subject matter scope per EchoStar limited to [subject]. Common interest: agreement with [party] dated [date]; [N] documents shared, logged. Protections: Rule 502(d) order entered [date]; categorical log protocol agreed [date]; clawback at [section]. Holds: [N] active, refreshed [date], acknowledgement [N] per cent. External disclosures: [regulator / auditor / insurer], assessed [date]. Known exposures: [dual-purpose set, pre-agreement diligence disclosure, foreign in-house files]. Action: [request 502(d) order / re-log category X / execute agreement / restrict distribution / refresh holds].

Phase 24. Model language

Legal advice request header.

"PRIVILEGED AND CONFIDENTIAL — ATTORNEY-CLIENT COMMUNICATION. I am writing to request legal advice from [counsel] regarding [subject]. Please do not forward this message."

Upjohn warning script.

"Before we begin: I represent [Company], not you personally. This conversation is privileged, but the privilege belongs to the Company, and the Company alone can decide to waive it — which means it may choose to share what you tell me with others, including the government or an opposing party. You should keep this conversation confidential. Do you understand? Would you like time to consider whether to obtain your own counsel?"

Clearance engagement language.

"[Counsel] engages [Vendor] to conduct the search described in Schedule A for the purpose of providing legal advice to [Client] regarding [subject]. All work product shall be delivered to [Counsel] and shall not be provided to [Client] or any third party without [Counsel]'s written direction."

Kovel engagement language.

"[Vendor] is engaged by [Counsel] as [Counsel]'s agent to assist [Counsel] in rendering legal advice to [Client] in connection with [matter], which [Counsel] anticipates may become the subject of litigation. All communications and work product are intended to be protected by the attorney-client privilege and the work product doctrine."

Opinion counsel separation protocol.

"[Opinion Counsel] shall not communicate with [Trial Counsel] regarding the subject matter of the Opinion, shall not receive [Trial Counsel]'s work product, and shall maintain a separate file. Neither firm shall have access to the other's document repository for this matter."

Litigation hold core paragraph.

"You must preserve all documents and electronically stored information relating to [subject], including email, chat messages, documents in shared drives and cloud storage, notes, calendar entries, and text messages on any device used for work. Do not delete anything within this scope. Automatic deletion has been suspended for [systems]; if you use any other tool with automatic deletion, tell [contact] immediately. Please confirm receipt."

Rule 502(d) order.

"Pursuant to Federal Rule of Evidence 502(d), the production of any document or information in this action, whether inadvertent or otherwise, shall not constitute a waiver of any privilege or protection in this or any other federal or state proceeding."

Common interest recital.

"The Parties share a common legal interest in [specific matter], and anticipate that [adverse party] may assert [claims] against each of them. The Parties wish to share privileged and work product material in furtherance of that common legal interest without waiving any privilege or protection."

Phase 25. Working with other advisers

[ ] Outside litigation counsel for the 502(d) order, the log protocol, and the protective order tiers, all raised at the first scheduling conference.
[ ] Separate opinion counsel, engaged before any opinion work begins, under a written non-exchange protocol.
[ ] Prosecution counsel, coordinated with litigation counsel on the continuing duty of candor, with a named owner.
[ ] Forensic vendors, engaged by counsel under a documented Kovel arrangement.
[ ] E-discovery vendors, whose review protocol and cross-border transfer terms should be settled before collection.
[ ] Local counsel abroad, for jurisdictions where in-house communications are not protected and for inspection or raid response.
[ ] Auditors, through the negotiated response letter protocol only.
[ ] Insurers, checked before sharing any assessment.
[ ] Information security and IT, who own the systems the hold reaches and the logs that prove reasonable measures.
[ ] Corporate development, so staging and common interest execution precede the negotiation rather than trail it.

Phase 26. Metrics

[ ] Training coverage. Percentage of engineering, product, and IP staff trained in the last twelve months.
[ ] Clearance workflow compliance. Percentage of searches commissioned through counsel.
[ ] Opinion separation rate. Matters where separation preceded the opinion, as a share of matters with opinions.
[ ] 502(d) coverage. Active matters with an order entered.
[ ] Log density. Logged entries per thousand documents produced; very high density signals over-designation.
[ ] Designation survivability. Sampled entries assessed as defensible, year over year.
[ ] Hold currency. Active holds refreshed in the last six months, and custodian acknowledgement rate.
[ ] Incident rate. Inadvertent productions per matter, and median days to clawback notice.
[ ] External disclosure log completeness. Whether the company can answer, in one query, what privileged material has been shared outside it and under what basis.

Phase 27. A note on proportion

[ ] Do not aim for silence. A company where nobody records a concern about a competitor's patent is not careful; it has stopped looking.
[ ] Focus on the recurring categories. Clearance analyses, opinions, competitor reviews, departure investigations, and prosecution materiality communications. Everything else is noise.
[ ] Accept some exposure. A documented, reasoned analysis that explains why the company proceeded is better evidence than nothing, even though it will be produced.
[ ] Remember the oldest advice. Write as though the document will be read by the other side, because a meaningful share of them will be.

Outcome. The programme was rebuilt in ninety days. Clearance searches moved to counsel-commissioned engagements, and the six-month backlog of business-run searches was closed out with completed analyses rather than left as half-finished risk notes. Patent agent files were segregated by function in a one-time exercise, which later removed an entire category from a motion to compel. Opinion counsel was separated from trial counsel before any opinion was commissioned, preserving the In re Seagate Technology boundary and confining the eventual In re EchoStar Communications waiver to a single subject. A standalone Rule 502(d) order was entered at the first scheduling conference, and a categorical log protocol replaced what would have been document-by-document logging of 1.4 million documents. Two inadvertent productions were clawed back without a waiver fight. The one hour of training delivered to the engineering team produced the largest measurable change: in the following year's sampling, dual-purpose communications fell by roughly two thirds.

Key Authorities at a Glance

| Authority | Where it applies | |---|---| | Fed. R. Evid. 501 | Throughout | | Fed. R. Evid. 502 | Phases 12, 13 | | Fed. R. Civ. P. 26 | Phases 3, 14, 17 | | Fed. R. Civ. P. 37 | Phase 11 | | Fed. R. Civ. P. 45 | Phase 15 | | Upjohn Co. v. United States | Phase 2 | | Hickman v. Taylor | Phase 3 | | United States v. Kovel | Phases 4, 10 | | Mohawk Industries v. Carpenter | Phase 12 | | In re Queen's University at Kingston | Phase 4 | | In re Spalding Sports Worldwide | Phase 5 | | In re EchoStar Communications | Phase 7 | | In re Seagate Technology | Phases 6, 7 | | Halo Electronics v. Pulse Electronics | Phases 3, 7 | | 35 U.S.C. § 284 | Phase 7 | | 35 U.S.C. § 287 | Phase 3 | | 35 U.S.C. § 298 | Phase 7 | | Therasense v. Becton, Dickinson | Phase 5 | | 37 C.F.R. § 1.56 | Phase 5 | | 18 U.S.C. § 1836 | Phase 10 | | 28 U.S.C. § 1782 | Phase 16 |

The five things people get wrong

Writing legal and business advice in the same message. The largest single source of lost privilege, and free to fix.

Letting the business run clearance searches. No privilege, no work product, and a document that establishes knowledge.

Commissioning the opinion from trial counsel. Forfeits the Seagate boundary for no benefit.

Sharing before the common interest agreement is executed. The enthusiasm of a negotiation, followed by a waiver that outlives the deal.

Skipping the Rule 502(d) order. A standalone order takes ten minutes at the scheduling conference and removes an entire category of dispute.