Ohio State's rigorous defense of the brand continues, this time, against the University of Oklahoma.
The university recently filed an an action against Oklahoma for its use and filed trademark of a block O logo, most prominently used on the chest of its drum major's uniform.
From NewsOK.com:
The notice of opposition was filed last week. Ohio State uses the block "O" as its primary logo, and the school extensively outlines the history of its use in the action.
The University of Oklahoma Board of Regents filed a trademark application for the mark in December 2017.