Düsseldorf district

Headquartered in Sussex, Wis., QuadTech, a worldwide leader and innovator of press control technology, has filed a legal action in the U.S. district court (Eastern District of Pennsylvania) against Q.I. Press Controls for infringing on QuadTech's U.S. patent covering register control technology. The complaint alleges that Q.I. Press Controls' register control product (mRC), sold in both mark and markless mode, infringes on a U.S. Patent. The founders and owners of Q.I. Press Controls are former QuadTech employees.