Houston lawyer Michael Pohl has filed a lawsuit alleging three lawyers and their firms, as well as a marketer who once worked for him, conspired to misappropriate his trade secrets and other confidential information and used it for their own gain—with the lawyers using it specifically to file litigation against Pohl for alleged barratry and other claims.

Pohl, of Law Office of Michael A. Pohl, seeks more than $1 million in damages from the defendants.