News & Analysis as of

New Guidance Prior Art Patent Invalidity

Womble Bond Dickinson

USPTO Removes Reliance on Applicant Admitted Prior Art in IPR Proceedings

Womble Bond Dickinson on

On July 31, 2025, the acting Director of the United States Patent and Trademark Office (USPTO) published a memorandum making a significant change in Patent Trial and Appeal Board (PTAB) inter partes review (IPR) practice and...more

Foley Hoag LLP

Reshaped IPR Landscape: Narrower Estoppel and Fewer New Cases

Foley Hoag LLP on

Key Takeaways - - A recent Federal Circuit decision in a case involving an inter partes review (IPR) significantly narrowed a patentee’s ability to rely on estoppel to block a defendant from raising invalidity grounds. -...more

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