MacroSolve sues AT&T, others over patent claim | Tulsa World

AT&T Inc., Citigroup Inc., Dell Inc., Groupon, Living Social and Salesforce.com are all large and well-known. They’re also all targeted in a lawsuit filed by Tulsa-based app maker MacroSolve Inc., which claims they infringed on a company patent. Jim McGill, vice chairman of MacroSolve, said the lawsuit — filed in U.S. District Court for the Eastern District of Texas — is part of the company’s effort to protect and monetize a patent...