Inventor

HOPMANN DON A

US11 patents

⚠️ This page may combine multiple inventors who share the name “HOPMANN DON A”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

WEATHERFORD TECH HOLDINGS LLC

5 patents

US11371318B2Jun 28, 2022

HOPMANN DON A

3 patents

US8237443B2Aug 7, 2012

Position sensor for a downhole completion device

HOPMANN DON A32 citations85

US8602658B2Dec 10, 2013

Spoolable signal conduction and connection line and method

HOPMANN DON A6 citations65

US8397828B2Mar 19, 2013

Spoolable downhole control system and method

HOPMANN DON A2 citations60

BAKER HUGHES INC

2 patents

US7104331B2Sep 12, 2006

Optical position sensing for well control tools

BAKER HUGHES INC34 citations91

US6798350B2Sep 28, 2004

Method for repeating messages in long intelligent completion system lines

BAKER HUGHES INC13 citations76

SLOAN JAMES T

1 patent

US9133687B2Sep 15, 2015

Tubing pressure insensitive pressure compensated actuator for a downhole tool and method

SLOAN JAMES T1 citations44

HOPMANN DON A

WEATHERFORD TECH HOLDINGS LLC

System and method for electrical control of downhole well tools

Prevention of gas migration through downhole control lines

System and method for electrical control of downhole well tools

Valve with erosion resistant flow trim

Synchronized actuator having multiple motors for downhole well tool

HOPMANN DON A

Position sensor for a downhole completion device

Spoolable signal conduction and connection line and method

Spoolable downhole control system and method

BAKER HUGHES INC

Optical position sensing for well control tools

Method for repeating messages in long intelligent completion system lines

SLOAN JAMES T

Tubing pressure insensitive pressure compensated actuator for a downhole tool and method