PTAB Estoppel is Confused By the USPTO
LexBlog IP
DECEMBER 12, 2022
Re-work Frustrates Patent Owners & The System. I have written about Patent Owner estoppel for years. But, it is fairly common for unsuccessful Patent Owners to go right back after a PTAB loss and pursue substantively identical claims through patent reissue or reexamination. Acco Brands Corp., 22, 2019)).
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