Court Ruled Private Sales Fail Public Disclosure Test
The Federal Circuit clarified patent law, affecting how companies protect IP before filing applications.
Updated on Oct. 1, 2026 in Economic Indicators
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The U.S. Court of Appeals for the Federal Circuit ruled on September 14, 2026, that private sales do not qualify as public disclosures under the America Invents Act. This decision vacated a $486,400 damages award in the case of NCS Multistage Inc. v. Nine Energy Service, Inc.
Why it matters
This ruling clarifies the criteria for what constitutes a public disclosure, directly impacting how businesses protect their intellectual property through patent filings. By distinguishing between private and public sales, the court altered the requirements for triggering patent grace periods.
The court vacated a $486,400 jury damages award in a dispute over patent validity. The litigation centers on product sales made in July 2012 prior to a 2013 patent application filing.
The players
U.S. Court of Appeals for the Federal Circuit
The federal court with exclusive jurisdiction over patent-related appeals that shapes national IP enforcement standards.
NCS Multistage Inc.
An energy industry technology firm that develops and sells specialized completion equipment for oil and gas wells.
Nine Energy Service, Inc.
A provider of completion and production services for unconventional oil and gas resources across North America.
The details
The court determined that NCS's sale was private because the product was delivered in sealed packaging and accompanied by confidential technical documents. Because the invention was not made sufficiently available to the public, the sale did not satisfy the threshold for public disclosure. Consequently, the court reversed two previous district court claim constructions and ordered a new trial regarding infringement and invalidity.
Timeline
July 2012: NCS sold its product to a single customer.
2013: NCS filed its patent application.
September 14, 2026: The Federal Circuit issued its decision.
Market Landscape
This decision marks a significant refinement of patent standards under the America Invents Act. It narrows the definition of public disclosure to protect companies from inadvertently invalidating their own patents through private commercial interactions.
Businesses should review their documentation procedures for early-stage product sales to ensure confidentiality is maintained. Consult with qualified patent counsel to determine if historical private sales might affect your current or future intellectual property protections.
The takeaway
The court's distinction between private and public disclosures provides a potential shield for inventors who engage in limited, confidential sales before filing. Operators should track the outcome of the upcoming remand to see how the court handles claims that a product fails to embody patent specifications.
Further reading
For more on regulatory impacts, visit Economic Indicators.
Source note: This article includes information reported by The National Law Review - A Free To Use Nationwide Database of Legal Publications.
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Should private sales of an invention be considered public disclosures when defending patent rights?
