ALEXANDRIA, Va., July 14 -- United States Patent no. D1,134,880, issued on July 14, was assigned to DeRoyal Industries Inc. (Powell, Tenn.).
"Negative pressure medical unit" was invented by Ethan Edward Valentine (Knoxville, Tenn.), Nicholas John Poker (Knoxville, Tenn.), Dhanvin Sunil Desai (Knoxville, Tenn.) and Scott Douglas Barnes (Knoxville, Tenn.).
The patent was filed on Sept. 14, 2023, under Application No. D/902,599.
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