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Patent Invalidity Prior Art On-Sale Bar

A&O Shearman

Federal Circuit Affirms Patent Invalidity, Emphasizes Need For Substantive Expert Testimony

A&O Shearman on

On August 19, 2025, the U.S. Court of Appeals for the Federal Circuit issued an opinion affirming the U.S. District Court for the Eastern District of Louisiana’s grant of summary judgment that claims of Wilco Marsh Buggies &...more

Knobbe Martens

Federal Circuit Review - March 2018

Knobbe Martens on

Distribution Agreements Can Constitute Offers for Sale Under Section 102(b) - In The Medicines Company v. Hospira, Inc., Appeal Nos. 2014-1469, 2014-1504, the Federal Circuit held that a distribution agreement qualified as...more

Schwabe, Williamson & Wyatt PC

2017 Supreme Court and Precedential Patent Cases From the Federal Circuit, With Some Significant Cases from 2016

Arbitration - Waymo v. Uber Technologies, 870 F.3d 1342 (Fed. Cir. 2017) - Waymo sued Uber and others for trade secret misappropriation and patent infringement. Uber contends that Waymo should be compelled to...more

McDonnell Boehnen Hulbert & Berghoff LLP

MBHB Snippets: A review of developments in Intellectual Property Law - Volume 14, Issue 2 (Spring 2016)

Pre-AIA and Post-AIA Issues Presented by the On-Sale Bar - The “on-sale” bar to patentability refers to a sale or offer for sale of an invention that can invalidate the patent for that invention. The...more

McDonnell Boehnen Hulbert & Berghoff LLP

Pre-AIA and Post-AIA Issues Presented by the On-Sale Bar

The “on-sale” bar to patentability refers to a sale or offer for sale of an invention that can invalidate the patent for that invention. The America-Invents-Act (AIA), which altered the language in the statutes that apply to...more

WilmerHale

Prior Art: When On Sale Is Not 'On Sale'

WilmerHale on

Pursuant to Section 102 of the Patent Act, the “on-sale” bar can invalidate a patent when the claimed invention has been the subject of a commercial sale or offer for sale, and the invention is ready for patenting. Prior to...more

Quinn Emanuel

May 2016: Patent Litigation Update

Quinn Emanuel on

District Court Rules Non-Public Sales or Offers for Sale No Longer Apply to the “On-Sale” Bar Under the AIA. The on-sale statutory bar is a limitation on patentability that prohibits an inventor from obtaining a patent, when...more

Foley & Lardner LLP

Contract Manufacturing Makes Angiomax Patents Invalid Under On Sale Bar

Foley & Lardner LLP on

In The Medicines Company v. Hospira, Inc., the Federal Circuit held that a transaction with a contract manufacturer gave rise to an on sale bar that invalidated The Medicines Company’s Angiomax® patents. Are the facts of this...more

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