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IEEE Spectrum

U.S. Battery Producer Celgard Files Lawsuit for IP Theft

In a lawsuit filed in California, U.S. battery manufacturer Celgard, a subsidiary of Polypore International, has sued Shenzhen Senior Technology Material Co., Ltd. (Senior) for patent infringement and for misappropriating Celgard’s trade secrets and confidential information.

The suit has a bit of a spy novel twist in that Celgard alleges in its complaint that one of its senior scientists left the company in October 2016 and moved to China to join Senior, after which he changed his name to cover up his identity. This scientist is alleged to be the source through which Senior acquired Celgard’s intellectual property.

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