On October 7, 2010, Allen Mammel filed a patent infringement lawsuit against Gateway Hook Co. in the Northern District of Texas (pdf copy of complaint here). Mammel claims that Gateway infringes U.S. Patent No. 5,970,650, which relates to a no-thread fishing fly.
Mammel is represented by Gary Smith, of the law firm Graham, Bright & Smith, P.C.
The case is before Judge Fish.