The listed Thompson/Center Arms brand products are protected by U.S. patents.

Patent Number Products
8,499,482 Breech plug used with all Encore® muzzleloaders, including the Encore® Endeavor, Encore® Pro Hunter™, Pro Hunter FX™, Triumph®, Bone Collector®
5,615,507 Icon®, Venture™, Black Diamond™ and Dimension®
5,639,981 Quick Load Accurizor® (QLA®) used with all muzzleloaders
5,782,030 Quick Load Accurizor® (QLA®) used with all muzzleloaders
5,680,722 Encore®, G2 Contender®
6,145,235 The T/C Power Rod® used with the Encore® Pro Hunter XT™, Triumph® Bone Collector®, Dream Season, Omega
6,532,692 Fire Storm™
6,604,311 Omega Dream Season
7,140,138 Swing Hammer® used with the Encore® and Encore® Pro Hunter
8,397,413 Speed Breech XT® used with the Endeavor™, Encore® Pro Hunter, Encore® Pro Hunter XT, Triumph®, Triumph® Bone Collector®
8,261,478 Speed Breech® 3 used with the Impact™ and Pro Hunter FX™
7,621,064 Speed Breech XT® used with Encore® Endeavor and Encore® Pro Hunter XT™ muzzleloaders
7,257,917 EZ Tip Extractor used with Encore® 209, Encore® Pro Hunter FX, Encore® Pro Hunter XT, and Endeavor
7,814,694 Speed Breech XT®used with the Endeavor, Encore® Pro Hunter, Encore®, Pro Hunter XT, Triumph®, Triumph® Bone Collector®
7,793,455 Breech Plug Lube Applicator
7,908,781 Triumph® Bone Collector®, Triumph® Rifle
7,950,177 Integra Base™, IBS™, Bolt-lok™ used with Icon®, Dimension®, and Venture™
7,954,269 Speed Breech XT® used with the Endeavor™, Encore® Pro Hunter, Encore®, Pro Hunter XT™, Triumph®, Triumph® Bone Collector®
8,096,075 Speed Breech XT® used with the Endeavor™, Encore® Pro Hunter, Encore®, Pro Hunter XT™, Triumph®, Triumph® Bone Collector®
8,397,415 Dimension®
8,397,416 Dimension®
7,743,544 Flex-tech Stock used with all Pro Hunters, Encore® Pro Hunter, Triumph® Bone Collector, Omega Dream Season, and the Venture™ with Flextech®
Patent
Pending
Breech Plug Patent Publication No. US-2013-0298437-A1 Speed Breech XT® used with the Encore® Pro Hunter, Pro Hunter FX™, Triumph®, Bone Collector® and all muzzleloaders