Honorary Patent High-tech Enterprises TIANJIN PM LASER INDUSTRIES CO.,LTD. is a certified Chinese national high-tech enterprise and Tianjin high-tech enterprise. Intellectual Property Rights So far we have 11 patents related to hot-melt patch adhesives, and 6 patents authorized by the United States at the same time. Trademark PLACE-N-BNAD is our international and domestic registered trademark of hot-melt patch adhesives.