Baker Botts·IP / PATENT
PTAB Estoppel Pressure Rises as USPTO Weighs Anonymous EPR Filings
Patent litigators face a shifting estoppel landscape as the USPTO considers rule changes on anonymous ex parte reexamination filings, on top of post-grant changes since March 2025.
ptab-post-grantestoppelex-parte-reexaminationuspto-rulemakingpatent-litigation
Read the original firm alert → Tuesday, November 3, 2026