CHARLOTTE, N.C., December 19, 2019 – Celgard, LLC (Celgard), a subsidiary of Polypore International, LP (Polypore), filed a First Amended Complaint against Defendants Shenzhen Senior Technology Material Co. Ltd. (US) and Research Institute (Senior-California), Shenzhen Senior Technology Material Co. Ltd. (Senior-China) (collectively, Senior), Sun Town Technology, Inc. (Sun Town), Farasis Energy USA, Inc., Farasis Energy, Inc., Farasis Energy (Gan Zhou), Inc., and Farasis Energy (Gan Zhou) Co., Ltd. (collectively, Farasis), Global Venture Development, LLC, and Global Venture Development, Inc. (collectively, Global Venture) (collectively, Defendants), adding the additional defendants Farasis, Sun Town and Global Venture to the active case against Senior in the U.S. District Court for the Northern District of California. The First Amended Complaint alleges Defendants infringe Celgard’s United States Reissued Patent RE47,520 (the ’520 patent), formerly United States Patent 6,432,586 (the ’586 patent), on ceramic coated separators, and Celgard’s United States Patent No. 6,692,867 (the ’867 patent), on polypropylene separators, and unlawfully misappropriated and are misusing Celgard’s trade secrets and confidential information, as well as several other violations of the law and breaches.
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