Gary Cole claims he invented Doritos Locos Tacos

The Doritos Locos Taco has been a smashing success for Taco Bell since they were rolled out last spring. According to ABC News, though, a Colorado state prisoner says it was all his idea.

He's now suing.

Gary Cole, who has been incarcerated at a maximum-security prison in central Colorado prison since 1997, is suing Taco Bell, Pepsi, Frito-Lay and parent company Yum! Brands, ABC says, claiming he originally came up with the idea for a Doritos-flavored taco in 2006.

Cole's complaint, which is comprised of 35 handwritten pages, alleges that a certified letter he tried to mail in 2010 with a list of product ideas, including the Doritos taco, was stolen and given to Taco Bell, Frito-Lay, the maker of Doritos chips, and Yum!, Taco Bell's parent company.

ABC News reports that Cole has filed a Freedom of Information Act request for all documents related to Doritos Locos Tacos.