Inventor
BROWN DONAVAN
US12 patents
⚠️ This page may combine multiple inventors who share the name “BROWN DONAVAN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
BAKER HUGHES OILFIELD OPERATIONS LLC
11 patentsUS12492618B2Dec 9, 2025
Delayed opening side pocket mandrel
BAKER HUGHES OILFIELD OPERATIONS LLC0 citations59
US12398629B2Aug 26, 2025
Side pocket mandrel with retrievable redundant electric gas lift valve
BAKER HUGHES OILFIELD OPERATIONS LLC0 citations59
US12297723B2May 13, 2025
Electric closing side pocket mandrel
BAKER HUGHES OILFIELD OPERATIONS LLC0 citations59
US11933150B2Mar 19, 2024
Electric remote operated gas lift mandrel
BAKER HUGHES OILFIELD OPERATIONS LLC0 citations59
US11725490B2Aug 15, 2023
Gas lift side pocket mandrel with modular interchangeable pockets
BAKER HUGHES OILFIELD OPERATIONS LLC0 citations59
US11692405B2Jul 4, 2023
Guide sleeve for use with side pocket mandrel
BAKER HUGHES OILFIELD OPERATIONS LLC0 citations59
US11542798B2Jan 3, 2023
Variable orifice valve for gas lift mandrel
BAKER HUGHES OILFIELD OPERATIONS LLC0 citations59
US12104472B2Oct 1, 2024
Dual string gas injection system with flow control
BAKER HUGHES OILFIELD OPERATIONS LLC0 citations58
US12134945B2Nov 5, 2024
Frangible disk sub, method and system
BAKER HUGHES OILFIELD OPERATIONS LLC1 citations57
US12492619B2Dec 9, 2025
Side pocket mandrel with direct check valves
BAKER HUGHES OILFIELD OPERATIONS LLC0 citations48
US12140004B2Nov 12, 2024
Side pocket mandrel promoting high internal velocity
BAKER HUGHES OILFIELD OPERATIONS LLC0 citations42