Protecting a Chemical or Materials Invention: A Practitioner's Guide to Claim Drafting, Unexpected Results, Formulation Secrecy, and Regulatory Disclosure
By Casey Scott McKay ·
This guide takes a chemical or materials invention from laboratory notebook to enforceable position, in the order the decisions actually arise. It starts with the disclosure decision — patent or secret — and shows why that question is answered by an analytical laboratory rather than by doctrine. It then works through specification architecture, the distribution of working examples that determines how much of a Markush genus survives, the comparative data programme that rebuts structural obviousness, and the range and criticality evidence that has to exist before the first office action. The middle sections cover regulatory disclosure and the confidentiality claims that keep a composition out of the public record, collaboration and material transfer terms, and the trade secret controls that protect process know-how the product cannot reveal. It closes on term management, post-grant exposure, and enforcement through purchase-and-analyse programmes.
IP and Technology > Patent Counseling Transactions | Guide | Published 31 May 2024 - Updated 27 September 2025 | Casey Scott McKay - marksy.us
Summary. This guide takes a chemical or materials invention from laboratory notebook to enforceable position, in the order the decisions actually arise. It starts with the disclosure decision — patent or secret — and shows why that question is answered by an analytical laboratory rather than by doctrine. It then works through specification architecture, the distribution of working examples that determines how much of a Markush genus survives, the comparative data programme that rebuts structural obviousness, and the range and criticality evidence that has to exist before the first office action. The middle sections cover regulatory disclosure and the confidentiality claims that keep a composition out of the public record, collaboration and material transfer terms, and the trade secret controls that protect process know-how the product cannot reveal. It closes on term management, post-grant exposure, and enforcement through purchase-and-analyse programmes.
Keywords: chemical patent drafting · Markush claim structure · specification ladder · working example distribution · unexpected results data · comparative testing · criticality of ranges · polymorph screening · product-by-process fallback · section 271g · formulation trade secrets · analytical reverse engineering test · TSCA CBI substantiation · safety data sheet withholding · disclosure register · collaboration agreements · material transfer reach-through · post-grant exposure · patent term extension · impurity fingerprinting
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