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Posts Tagged: "spray gun"

3M files patent and trademark suit against Chinese manufacturer of spray gun paint preparation system

On September 21st, Saint Paul, MN-based technology and materials company 3M (NYSE:MMM) filed a lawsuit alleging patent and trademark infringement committed by Shanghai, China-based Thunder Finish. The lawsuit targets Thunder Finish’s marketing of paint preparation products developed by 3M which are meant to simplify the use and cleanup of liquid paint spray guns. The suit is filed in the Western District of Wisconsin.