Inventor
OLIS JAMES ALAN
US12 patents
Patents
12 patentsUS11231111B2Jan 25, 2022
Pump valve seat with supplemental retention
HALLIBURTON ENERGY SERVICES INC37 citations93
US11105327B2Aug 31, 2021
Valve assembly for a fluid end with limited access
HALLIBURTON ENERGY SERVICES INC37 citations93
US11073144B1Jul 27, 2021
Pump valve assembly
HALLIBURTON ENERGY SERVICES INC16 citations84
US11965503B2Apr 23, 2024
Flexible manifold for reciprocating pump
HALLIBURTON ENERGY SERVICES INC4 citations73
US11441687B2Sep 13, 2022
Pump fluid end with positional indifference for maintenance
HALLIBURTON ENERGY SERVICES INC3 citations72
US10808846B1Oct 20, 2020
Pump plunger with wrench features
HALLIBURTON ENERGY SERVICES INC3 citations72
US12247563B2Mar 11, 2025
Flexible manifold for reciprocating pump
HALLIBURTON ENERGY SERVICES INC0 citations61
US11739748B2Aug 29, 2023
Pump fluid end with easy access suction valve
HALLIBURTON ENERGY SERVICES INC1 citations61
US11530750B2Dec 20, 2022
Horizontal balanced guided valve
HALLIBURTON ENERGY SERVICES INC0 citations61
US11059154B2Jul 13, 2021
Two-piece guide bushing
HALLIBURTON ENERGY SERVICES INC1 citations58
US11560888B2Jan 24, 2023
Easy change pump plunger
HALLIBURTON ENERGY SERVICES INC0 citations51
US12404942B2Sep 2, 2025
Plunger or piston with hardened insert
HALLIBURTON ENERGY SERVICES INC0 citations50