The United States Patent and Trademark Office (USPTO) Trademark Trial and Appeal Board (TTAB) has docketed a new opposition proceeding, identified as TTAB91306213. PEI Licensing LLC has filed this opposition against RockHopperPercy LLC, challenging the registration of the mark "PERCY THE ROCKHOPPER PENGUIN & FRIENDS." The filing date for this opposition was March 27, 2026.

This filing initiates a formal legal dispute within the USPTO's administrative trademark proceedings. Legal professionals representing either party will need to engage in the TTAB's procedural rules, which include discovery, motion practice, and potentially a final hearing. While this is an initial filing and no specific compliance deadlines or penalties are immediately apparent from this abstract, parties involved must adhere to TTAB procedural timelines to avoid adverse rulings.