The Federal Circuit issued a precedential opinion on March 4, 2025, that serves as valuable guidance for product-by-process claims, particularly in the context of inherency in claim construction. In Restem, LLC v. Jadi Cell,...more
Limits of Inherent Anticipation in Product-by-Process Claims - In Restem, LLC v. Jadi Cell, LLC, Appeal No. 23-2054, the Federal Circuit held that inherency in product-by-process claims requires the prior art to inevitably...more
The US Court of Appeals for the Federal Circuit affirmed the Patent Trial & Appeal Board’s determination that 79 challenged composition claims across three related patents were unpatentable but reversed the Board’s...more
Just Because Something May Result From a Prior Art Teaching Does Not Make it Inherent in that Teaching - In Personal Web Technologies, LLC v. Apple, Inc., Appeal No. 2018-1599, the Federal Circuit clarified that the mere...more
Among the many differences from a patent litigation in a district court, the expedited nature of an inter partes review (IPR) brings with it an obligation for the petitioner to have a full-fledged legal theory of its case...more
In recent decisions, the Federal Circuit has found error in the USPTO Patent Trial and Appeal Board’s approach to obviousness rejections, including its reliance on the doctrine of routine optimization without evidence of an...more
A patent claim can be rejected for inherency over a reference. An inherent property cannot be claimed, even if that property was not known at the time a prior art composition was disclosed or prior art invention was made....more