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.
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In December 2021, patent practice was upended by four related United States Patent and Trademark Office (USPTO) Patent Trial & Appeal Board (PTAB) decisions holding that patents subject to statutory Patent Term Adjustment...more