In Lynk Labs v. Samsung Electronics, the Federal Circuit determined that “a published patent application can be deemed prior art in an IPR as of the application’s filing date.” The Court affirmed the PTAB’s determination that challenged claims of U.S. Patent No. 10,687,400 (the ’400 patent), which relates to light emitting diodes (LEDs), are

In a decision that underscores the importance of prior art in the context of AI patents, the PTAB recently issued a final decision in Tesla, Inc. v. Autonomous Devices, LLC, IPR2023-01173 (PTAB January 3, 2025), invalidating all challenged claims of U.S. Patent Number 11,055,583 (the “’583 patent”).  The case provides some insight into how

In Virtek Vision Int’l. ULC v. Assembly Guidance Systems, Inc. the Federal Circuit reversed in part the PTAB’s final written decision in an IPR petition filed by Assembly Guidance, on the basis that the petition failed to identify a motivation to combine elements present in the prior art, stating that: “A reason for combining must exist.” Virtek Vision Int’l ULC v. Assembly Guidance Sys., Inc., 97 F.4th 882, 888 (Fed. Cir. 2024). The Court determined that Assembly Guidance had failed to provide any reasoning why one skilled in the art would be motivated to combine the disclosures of the prior art references, and therefore did not show that the challenged claims were unpatentable.Continue Reading Give Me ONE Reason: Federal Circuit Requires At Least One Reason for Motivation to Combine

The Federal Circuit’s recent decision in Sirona Dental Systems GMBH v. Institut Straumann AG, Appeals 2017-1341, 2017-1403 (Fed. Cir. June 19, 2018) tasked the PTAB with reconciling the Supreme Court’s SAS Institute decision (discussed here) with its en banc decision in Aqua Products regarding the burden of proof on motions to amend (discussed here).
Continue Reading Federal Circuit Remands Decision on Motion to Amend to Board to Apply and Interpret Aqua Products and SAS Institute

Trade SecretsI had the opportunity to attend the ChIPs (Chiefs of Intellectual Property) conference in Washington DC this week and thought that several of the panels that I attended would be of interest to the PTABWatch readership.  The organization is focused on the advancement of women in tech, law, and policy and enjoys strong participation from the judiciary, PTO, copyright office, and many prominent in-house and private-practice attorneys. For more information about ChIPs, check out the website at chipsnetwork.org.
Continue Reading ChIPs Conference Coverage

DetailsBoehringer Ingelheim filed three petitions attacking patents generally drawn to methods of treating RA patients with rituximab.  The decisions on two of those petitions, i.e., IPR2015-00415 and IPR2015-00417, have been addressed elsewhere.  In IPR2015-00418, the PTAB declined to institute an IPR on the petition’s challenges to the lone claim of U.S. Patent No. 8,329,172, drawn to a method of treating low-grade non-Hodgkins lymphoma (LG-NHL) with CVP tri-chemical chemotherapy and rituximab maintenance therapy. 
Continue Reading Put Away The Blunderbuss – Attention to Detail and Thoroughness Are Needed in Preparing an IPR Petition