TTAB solves
Anna B. Folgers (IIT Chicago-Kent College of Law) “The Seventh Cir enth Circuit’s Approach to Deterring the To Deterring the Trademark Troll: Say Goodbye to Your Register our Registration and P ation and Pay the Costs of Litigation” September 01, 2007 3 Seventh Circuit Rev. 452 https://scholarship.kentlaw.iit.edu/cgi/viewcontent.cgi?article=1173&context=seventhcircuitreview
The TTAB has jurisdiction over four types of inter partes proceedings: oppositions, cancellations, interferences, and concurrent use proceedings.76 Cancellation proceedings may be initiated by any person who believes that they are or will be damaged by a registered mark.77 An inter partes proceedings before the TTAB is similar to district court proceedings in that there are pleadings, motions, discovery and brief filing.78 They differ, however, because the TTAB is an administrative tribunal and thus, proceedings are conducted solely in writing.79 A party to a proceedings may never even come before the board, by way of giving witness testimony or otherwise, unless a party requests oral hearing on the matter.80