Following the United Kingdom court’s grant on May 7, 2020 of an interim injunction against Shenzhen Senior Technology Material Co., Ltd. (Senior) as requested by Celgard, LLC, a subsidiary of Polypore International, LP, the matter returned before the UK court on May 21, 2020. The court’s new order continued the effect of the interim injunction pending a further substantive hearing that will take place on an agreed date between June 29 and July 10, 2020. Senior provided an official letter to the Judge acknowledging its formal undertakings to the UK court. Celgard intends to pursue an injunction through trial of its trade secret case against Senior at the next hearing.
On April 30, 2020, Celgard filed an application for an urgent injunction against Senior in the High Court of Justice in London, England. On May 7, on an ex parte basis, the UK court granted an interim injunction to prevent Senior from importing certain battery separators into the UK.
Earlier on March 2, Celgard filed a Complaint against Defendants Shenzhen Senior Technology Material Co. Ltd. (Senior-China), Shenzhen Senior Technology Material Co. Ltd. (US) Research Institute (Senior-California), Xiaomin (Steven) Zhang, Sun Town Technology, Inc., Global Venture Development, LLC, and Global Venture Development, Inc. (collectively, Global Venture) (collectively, WDNC Defendants) in the U.S. District Court for the Western District of North Carolina (WDNC) for trade secret misappropriation, unfair and deceptive trade practices and unfair competition, civil conspiracy, unjust enrichment and conversion.
Additionally, Celgard filed a Second Amended Complaint against Defendants Shenzhen Senior Technology Material Co. Ltd. (US) Research Institute (Senior-California), Farasis Energy USA, Inc., Farasis Energy, Inc., Farasis Energy (Gan Zhou), Inc., and Farasis Energy (Gan Zhou) Co., Ltd. (collectively, Farasis), Sun Town Technology, Inc., Global Venture Development, LLC, and Global Venture Development, Inc. (collectively, Global Venture) (collectively, NDCA Defendants) for patent infringement, breach of contract and breach of implied covenant of good faith and fair dealing in the U.S. District Court for the Northern District of California (NDCA).
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About Celgard and Polypore
Celgard specializes in coated and uncoated dry-process microporous membranes used as separators that are a major component of lithium-ion batteries. Celgard’s battery separator technology is important to the performance of lithium-ion batteries for electric drive vehicles, energy storage systems and other applications.
Celgard, LLC is a wholly-owned subsidiary of Polypore International, LP, an Asahi Kasei Company.