ALEXANDRIA, Va., Oct. 8 -- United States Patent no. D1,096,874, issued on Oct. 7, was assigned to Hypertherm Inc. (Hanover, N.H.).
"Plasma arc torch" was invented by Christopher Pillsbury (Lebanon, N.H.), David L. Bouthillier (Hartford, Vt.), Stephen M. Dunbar (Lebanon, N.H.) and Micah Roberts (Lebanon, N.H.).
The patent was filed on April 22, 2022, under Application No. D/835,952.
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