BU and Baylor are no strangers to a legal fight over the respective universities' logos. The collegiate combat over logo design started in 1987 when Baylor applied to register the interlocking logo with the U.S. Patent and Trademark Office, but BU opposed the application.

Baylor University's interlocking "BU" logo is at the center of a lawsuit filed Friday against Boston University that alleges the northeastern school's use of a similar design qualifies as trademark infringement.