Who can file an opposition to a trademark application before the TTAB?

INTRODUCTION TO TRADEMARK OPPOSITION BEFORE THE TTAB The United States Patent and Trademark Office (USPTO) provides a mechanism for interested parties to oppose the registration of a trademark through proceedings before the Trademark Trial and Appeal Board (TTAB). The TTAB is an administrative body responsible for adjudicating disputes related to trademark applications and registrations, including oppositions, cancellations, and concurrent use proceedings. Trademark opposition is a critical part of maintaining the integrity of the trademark register,…