Whether the Ludys’ cultivation and propagation of the unreleased grape varieties before the critical date was an invalidating public use under 35 U.S.C. § 102(b).
Holding
No. The plaintiffs did not prove by clear and convincing evidence that the pre-critical-date use was publicly accessible or commercially exploited.
Reasoning
A use triggers the pre-AIA § 102(b) public-use bar only when it is accessible to the public or commercially exploited. The doctrine protects against removing from the public domain an invention that the public reasonably believes is freely available. Relevant considerations include the nature of the activity, public access to and knowledge of it, and whether circumstances imposed an expectation of confidentiality. A formal nondisclosure agreement is unnecessary; an understanding or circumstances supporting secrecy can suffice.
That framework applies even when the allegedly invalidating activity was conducted by an unaffiliated third party rather than the inventor. Third-party use can invalidate a later patent only if it was publicly accessible. Secret or confidential third-party use does not qualify, and the adequacy of secrecy is assessed from the perspective of the party controlling the alleged prior use.
The record supported the district court’s finding that Jim and Larry Ludy treated their possession and use of the plants as secret. Both knew that Klassen lacked authority to distribute unreleased material. Jim told Larry to keep the matter to themselves, and both understood that disclosure could expose Klassen to serious consequences. Their later actions—including efforts to conceal the source of the material and the sale of post-critical-date fruit under a different varietal name—further supported the finding that they sought to preserve secrecy rather than make the varieties publicly available.