LONGVIEW, Texas — ATDynamics and its new parent company Stemco have filed a patent infringement claim against Ridge Corp. The company is asking the courts to stop Ridge Corp. from making or selling its Green Tail aerodynamic device, on the…
LONGVIEW, Texas — ATDynamics and its new parent company Stemco have filed a patent infringement claim against Ridge Corp. The company is asking the courts to stop Ridge Corp. from making or selling its Green Tail aerodynamic device, on the…