The USPTO's Trademark Trial and Appeal Board (TTAB) has initiated a new opposition proceeding, docketed as TTAB91305975, filed on March 18, 2026. The case involves Antonio Puig, S.A. as the plaintiff and Corum Personal Care LLC as the defendant, with the disputed mark being 'CORUM'. This filing represents the commencement of a formal legal challenge to the registration or use of the 'CORUM' mark.

Legal professionals representing parties involved in trademark disputes should note the initiation of this opposition. While no immediate compliance deadline is stated, parties must respond to the opposition within the timeframe prescribed by TTAB rules to avoid default. Failure to respond appropriately could lead to adverse judgments regarding the disputed mark. Further procedural filings and deadlines will be established as the case progresses.