Sunday - October 4, 2026

Through-Hardened Valve Seat for Hydraulic Fracturing

2026-09-01

ALEXANDRIA, Virginia, Sept. 1 -- APEX INDUSTRIAL LLC, Middleton, Ohio has been assigned a patent (No. US 12723662 B2, initially filed Nov. 11, 2024) developed by Erik Rasmussen, Hayward, Wisconsin, and Steven J. Metz, Oshkosh, Wisconsin, for "Through-hardened valve seat for hydraulic fracturing." . . .

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Through-Hardened Valve Seat for Hydraulic Fracturing

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