3M Prevails in Patent Infringement Action Against Qingdao Sisa Abrasives Co., Ltd.

The Intermediate People’s Court of Zhengzhou, China has ordered that the BCA-T (Blue Ceramic Abrasive Triangle) abrasive grain made by Qingdao Sisa Abrasives Co., Ltd. infringes 3M’s Chinese patents ZL200980155621.4 and ZL201080026268.2. These patents relate to 3M’s Precision-Shaped Abrasive Grain technology.

The court order requires Sisa to immediately stop the manufacture, sale, and offer for sale of Sisa’s infringing abrasive grain in China and directs the company to compensate 3M for its economic losses and expenses for rights of protection. The judgement went into effect on Feb. 1, 2021. 

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