Inventor

CHEN CHIH HAU

US2 patents

Patents

2 patents

US12258849B2Mar 25, 2025

Arrangement for supporting crankshaft bearings in hydraulic fracturing pump

SPM OIL & GAS INC0 citations54

US12560165B2Feb 24, 2026

Pump assembly using a shell bearing with a partial groove

SPM OIL & GAS INC0 citations44