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Rosen-Durling Test Back on the Table

Rosen-Durling Test Back on the Table

By John Evans, Vishal Khatri, and Jesse Wynn - In February, the Federal Circuit declined to modify or overrule its long-standing test for obviousness in design patents, the Rosen-Durling test, despite arguments that the Supreme Court overruled it in KSR v. Teleflex. ...

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Motion to Amend: Much to Admire?

Motion to Amend: Much to Admire?

By Alex Li and Matt Johnson - Motions to amend (MTA) are becoming a more frequently used tool for patent owners litigating before the Patent Trial and Appeal Board (PTAB).  When a patent is being challenged in an inter partes review (IPR) or post-grant reviews (PGR)...

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PTAB Clarifies Claim Preclusion Standards

PTAB Clarifies Claim Preclusion Standards

By Alexa Grillis,* David Linden, and Dave Maiorana - On June 2, 2023,the PTAB held the standard enunciated in Astoria Federal Sav. & Loan Ass’n v. Solimino, 501 U.S. 104 (1991) applies to claim preclusion determinations. This was yet another decision in the...

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