3M files infringement suit v Thunder Finish

3M and 3M Innovative Properties Co. said they filed a lawsuit in the Western District of Wisconsin against China-based Thunder Finish Co. Ltd. alleging infringement of patent and trademark rights related to 3M’s PPS technology used in the automotive collision repair industry.

“The suit alleges certain Thunder Finish after-market spray gun paint cup products, which are made in China and sold in the U.S., infringe 3M patent rights directed to 3M PPS technology that enables the efficient mixing and spraying of coatings for automotive collision repair and other applications,” said 3M.

“The suit also alleges that Thunder Finish’s marketing materials for these products infringe 3M’s registered trademarks.”