Working Without Chevron: The PTO as Prime Mover

Through a proliferation of post-issuance administrative proceedings, the U.S. Patent and Trademark Office (PTO) has become a major player in the fate of patents after their initial examination and grant. In combination with the PTO’s more traditional roles in initial examination and general guidance, new post-issuance proceedings enable the PTO to help steer the development of substantive patent law even without general provision of high-level Chevron deference for the agency’s interpretations of substantive aspects of the U.S. Patent Act. Contrary to some commentators’ suggestions, congressional authorization for new post-issuance proceedings does not appear to have included an implicit delegation of interpretive authority generally warranting Chevron deference on such matters. But the PTO can still accomplish much with lower-level deference and the advantages that its common “first mover” position provides.