ALEXANDRIA, Va., Aug. 12 -- United States Patent no. D1,141,067, issued on Aug. 11, was assigned to Minimax Viking Patent Management GmbH (Bad Oldesloe, Germany).
"Concealed fire protection sprinkler cap" was invented by Martin H. Workman (Delton, Mich.) and Jed E. Pipe (Byron Center, Mich.).
The patent was filed on Aug. 25, 2025, under Application No. D/019,656.
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