Understanding the Impact of IPR Estoppel and PTAB Discretionary Denials — Patents: Post-Grant Podcast
New Developments in Obviousness-Type Double Patenting and Original Patent Requirements — Patents: Post-Grant Podcast
Inter Partes Review: Validity Before the PTAB
On June 30, 2025, the Federal Circuit issued a precedential decision in Eye Therapies, LLC v. Slayback Pharma, LLC, reversing the Patent Trial and Appeal Board’s (PTAB’s) claim construction of the phrase “consisting...more
On February 22, 2021, the Federal Circuit addressed for the first time whether collateral estoppel (i.e., issue preclusion) was applicable in inter partes reexamination proceedings. The case is SynQor, Inc. v. Vicor Corp.,...more
The Appointments Clause: Ensuring That PTAB Decisions Are Subject to Constitutional Checks and Balances In Arthrex, Inc. v. Smith & Nephew, Inc., Appeal No. 18-2251, the Federal Circuit ruled that, under the then-existing...more
In E.I. DuPont De Nemours & Co. v. Synvina C.V., the Federal Circuit reversed the decision of the USPTO Patent Trial and Appeal Board (PTAB) that had upheld Synvina’s chemical process patent against an obviousness challenge...more
Aatrix Software, Inc. v. Green Shades Software, Inc., Appeal No. 2017-1452 (Fed. Cir. May 31, 2018) and Berkheimer v. HP Inc., Appeal No. 2017-1437 (Fed. Cir. May 31, 2018) - In these two, published, precedential orders...more
Arendi S.A.R.L. v. Google LLC, Appeal No. 2016-1249 (Fed. Cir. Feb. 20, 2018) - In Arendi S.A.R.L. v. Google LLC, the Federal Circuit upheld the Patent Trial and Appeal Board’s (PTAB) obviousness determination following...more
Federal Circuit Summaries - Before Newman, Bryson, and Moore. Appeal from the Patent Trial and Appeal Board. Summary: Prosecution disclaimer occurred when an applicant explained why claims were amended and the Examiner...more
Berkheimer v. HP Inc., Appeal No. 2017-1437 (Fed. Cir. Feb. 8, 2018) - In Berkheimer v. HP Inc., the Federal Circuit reviewed the District Court’s summary judgment finding that certain claims of a patent were invalid as...more
This is the second of a three-part series discussing developments around Section 325(d). Part one appeared in our October 2017 newsletter and part three will appear in our December 2017 newsletter....more