Inventor
GRUNBECK JOHN J
US34 patents
⚠️ This page may combine multiple inventors who share the name “GRUNBECK JOHN J”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
WEATHERFORD TECH HOLDINGS LLC
13 patentsUS11598928B2Mar 7, 2023
Cable to reduce optical fiber movement and methods to fabricate
WEATHERFORD TECH HOLDINGS LLC4 citations75
US10338336B1Jul 2, 2019
Fiber optic cable for inhibiting breaching fluid flow
WEATHERFORD TECH HOLDINGS LLC2 citations72
US12111510B2Oct 8, 2024
Cable to reduce optical fiber movement and methods to fabricate
WEATHERFORD TECH HOLDINGS LLC0 citations62
US11880084B2Jan 23, 2024
Cable to reduce optical fiber movement and methods to fabricate
WEATHERFORD TECH HOLDINGS LLC0 citations62
US10451807B2Oct 22, 2019
Strain isolated fiber Bragg grating sensors
WEATHERFORD TECH HOLDINGS LLC0 citations52
US10175131B2Jan 8, 2019
Small profile pressure and temperature gauges
WEATHERFORD TECH HOLDINGS LLC0 citations52
US9677963B2Jun 13, 2017
Small profile pressure and temperature gauges
WEATHERFORD TECH HOLDINGS LLC0 citations52
US9435973B2Sep 6, 2016
Optical fiber coating to prevent adhesion at high temperatures
WEATHERFORD TECH HOLDINGS LLC0 citations52
US10527812B2Jan 7, 2020
Fiber optic cable for inhibiting breaching fluid flow
WEATHERFORD TECH HOLDINGS LLC0 citations51
US9841315B2Dec 12, 2017
Fiber optic cable for distributed acoustic sensing with increased acoustic sensitivity
WEATHERFORD TECH HOLDINGS LLC1 citations51
US12338687B1Jun 24, 2025
Two-stage in-well wet mate connection
WEATHERFORD TECH HOLDINGS LLC0 citations50
US10606000B2Mar 31, 2020
Optical waveguide feedthrough assembly
WEATHERFORD TECH HOLDINGS LLC0 citations49
US9588314B2Mar 7, 2017
Optical transducer with integrated feedthrough
WEATHERFORD TECH HOLDINGS LLC0 citations49
WEATHERFORD LAMB
12 patentsUS6490931B1Dec 10, 2002
Fused tension-based fiber grating pressure sensor
WEATHERFORD LAMB108 citations98
US7646953B2Jan 12, 2010
Fiber optic cable systems and methods to prevent hydrogen ingress
WEATHERFORD LAMB65 citations97
US7963319B2Jun 21, 2011
Downhole cable gripping/shearing device
WEATHERFORD LAMB25 citations92
US7747126B2Jun 29, 2010
Optical waveguide feedthrough assembly
WEATHERFORD LAMB14 citations92
US6768825B2Jul 27, 2004
Optical sensor device having creep-resistant optical fiber attachments
WEATHERFORD LAMB32 citations92
US7769252B2Aug 3, 2010
Location marker for distributed temperature sensing systems
WEATHERFORD LAMB17 citations84
US8351755B2Jan 8, 2013
Optical waveguide feedthrough assembly
WEATHERFORD LAMB7 citations83
US7751677B2Jul 6, 2010
Optical fiber feedthrough using axial seals for bi-directional sealing
WEATHERFORD LAMB12 citations83
US9389174B2Jul 12, 2016
Time division multiplexing (TDM) and wavelength division multiplexing (WDM) sensor arrays
WEATHERFORD LAMB2 citations61
US9052244B2Jun 9, 2015
Array temperature sensing method and system
WEATHERFORD LAMB0 citations52
US7373072B2May 13, 2008
Feedthrough fiber strain relief
WEATHERFORD LAMB0 citations49
US9223101B2Dec 29, 2015
Optical transducer with integrated feedthrough
WEATHERFORD LAMB0 citations48
DOWD EDWARD M
3 patentsUS8111960B2Feb 7, 2012
Fiber optic cable systems and methods to prevent hydrogen ingress
DOWD EDWARD M5 citations73
US9377598B2Jun 28, 2016
Fiber optic cable systems and methods to prevent hydrogen ingress
DOWD EDWARD M5 citations72
US9104008B2Aug 11, 2015
Optical fiber coating to prevent adhesion at high temperatures
DOWD EDWARD M2 citations62