The Factory That Knows Everything: Tooling, Specifications, and the IP You Hand to a Contract Manufacturer
By Casey Scott McKay ·
Outsourcing manufacture means handing a third party everything needed to make the product — and, frequently, everything needed to make it for someone else. This article works through what actually transfers in a contract manufacturing relationship: the tooling and who owns it, the specifications and drawings and what copyright in them does and does not reach, and the process know-how that is the real asset and the least protected. It covers the trade secret framework and the reasonable measures requirement that most supplier relationships fail, the residuals clauses that quietly authorise reuse, and the improvement allocation that decides who owns the next generation. The second half addresses overruns and unauthorised production, counterfeiting by suppliers, the enforcement routes available against goods made abroad, and the exit and requalification planning that determines whether a manufacturer can ever change factories.
IP and Technology > Trade Secrets | Article | Published 22 July 2025 - Updated 18 July 2026 | Casey Scott McKay - marksy.us
Summary. Outsourcing manufacture means handing a third party everything needed to make the product — and, frequently, everything needed to make it for someone else. This article works through what actually transfers in a contract manufacturing relationship: the tooling and who owns it, the specifications and drawings and what copyright in them does and does not reach, and the process know-how that is the real asset and the least protected. It covers the trade secret framework and the reasonable measures requirement that most supplier relationships fail, the residuals clauses that quietly authorise reuse, and the improvement allocation that decides who owns the next generation. The second half addresses overruns and unauthorised production, counterfeiting by suppliers, the enforcement routes available against goods made abroad, and the exit and requalification planning that determines whether a manufacturer can ever change factories.
Keywords: contract manufacturing · tooling ownership · moulder liens · specifications and drawings · trade secret reasonable measures · residuals clauses · improvement allocation · overruns and third shift production · gray goods from the factory · counterfeiting by suppliers · subcontractor confidentiality · technology transfer · exit and requalification · design ownership · private label and OEM · supplier audits · section 337 remedies · customs recordation · reverse engineering · employee mobility at suppliers
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