Hypertherm, Inc. (Hanover, NH) has sued Shenzen River Trading Co., Ltd. (Guangzhou, China) for infringement of Patent Nos. 8,115,136, 7,989,727 and 6,207,923 directed to plasma cutting systems.
Hypertherm, Inc. v. Shenzen River Trading Co., Ltd., 12-10798-GAO (D. Mass. May 3, 2012)
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