Direct comparison
Know-How License vs. Patent License
How know-how and patent licenses differ in scope, term, and royalties -- and why biotech deals typically bundle both.
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How do Know-How License, Patent License compare side by side?
The table below compares Know-How License, Patent License across 9 procurement-relevant dimensions, from what is licensed through enforcement mechanism.
Side-by-side comparison
| Dimension | Know-How License | Patent License |
|---|---|---|
| What is licensed | Confidential technical information: processes, formulations, protocols, operational know-how | Rights under a specific granted patent (or pending application) claim set |
| Legal basis | Trade-secret law (DTSA, state UTSA statutes) plus contractual confidentiality obligations | Patent Act, 35 U.S.C., as administered by the USPTO |
| Disclosure required to obtain the right | None -- protection depends on keeping the information secret | Full public disclosure of the claimed invention, in exchange for the exclusionary right |
| How the licensee learns to use it | Active technology transfer -- documentation, training, technical support from the licensor | Reading the published patent; no transfer obligation on the licensor beyond the grant itself |
| Term | No fixed statutory ceiling -- runs as long as the agreement specifies or the information stays secret | Capped at the patent term -- 20 years from the earliest non-provisional filing date |
| Effect of the underlying right lapsing | If the information becomes public (independent discovery, lawful reverse engineering), the exclusivity basis disappears | Once the patent expires, the invention is dedicated to the public and anyone may practice it royalty-free |
| Royalties after the underlying right ends | Can lawfully continue if the licensee still uses the confidential information and the agreement structures it as a genuine know-how royalty | Cannot lawfully continue past patent expiration on their own -- Brulotte v. Thys Co. (1964), reaffirmed in Kimble v. Marvel (2015) |
| Remedy if a third party gets the same information/invention independently | No remedy against independent discovery or lawful reverse engineering -- only misappropriation is actionable | Patent infringement does not require copying -- independent invention is not a defense |
| Enforcement mechanism | Breach-of-contract and trade-secret-misappropriation claims | Patent infringement claims under 35 U.S.C. |
Common questions
Common questions about Know-How License vs Patent License
Can a know-how license exist without any patent at all?
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Yes. Manufacturing-process, software, and early-stage biological-material licenses are often pure know-how licenses with no patent component, enforced through contractual confidentiality and trade-secret law rather than patent infringement.
Why do biotech licenses so often combine patent and know-how rights?
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Because a patent's claims often do not capture the tacit manufacturing and process knowledge needed to reliably reproduce the invention, and because a properly structured hybrid license can lawfully continue know-how royalties after the patent expires, extending the commercial life of the deal.
Can royalties continue after a licensed patent expires?
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Not as a pure patent royalty -- Brulotte v. Thys Co. and Kimble v. Marvel Entertainment make that unenforceable. A hybrid license with a genuine, appropriately reduced know-how royalty component can continue past expiration.
Does a know-how license need to be exclusive to be valuable?
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No, but exclusivity matters more for know-how than it might seem, precisely because know-how has no independent legal exclusivity the way a patent does. A non-exclusive know-how license only prevents the licensee from disclosing or misusing the information the licensor gave it -- it does nothing to stop the licensor from separately teaching the same know-how to a competitor, unlike a non-exclusive patent license, where the underlying patent right is identical no matter who else is licensed.
What happens to a know-how license if the information later becomes public?
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This depends entirely on how the agreement defines the licensed know-how and what it says about that scenario. Many agreements provide for royalty reduction or termination of the know-how royalty obligation once the underlying information genuinely enters the public domain through no breach by either party, since the rationale for paying to keep using secret information disappears once it is no longer secret.
Is a know-how license the same as a trade secret license?
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In practice the terms are used close to interchangeably in licensing documents, though "trade secret" more precisely refers to information meeting the specific legal definition under the DTSA/UTSA (economic value from secrecy, plus reasonable protective measures), while "know-how" is the broader, less formal term licensing professionals use for confidential technical information generally, whether or not every element of the legal trade-secret test has been separately established for it.
