Inventor

John J. Grunbeck

Inventor

Northford, CT, US

Overview

1992–2020

Patent span

Physics

Primary field (CPC G)

Patents· 41 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

G02Bprimary

G02BOptical elements, systems or apparatus31%

E21BEarth or rock drilling23%

G01DMeasuring not specially adapted for a specific variable11%

G01LMeasuring force, stress, torque, work, mechanical power, mechanical efficiency, or fluid pressure11%

G01KMeasuring temperature8%

Y10TTechnical subjects covered by former us classification6%

G01VGeophysics5%

B05DProcesses for applying fluent materials to surfaces, in general2%

G01HMeasurement of mechanical vibrations or ultrasonic, sonic or infrasonic waves2%

G01MTesting static or dynamic balance of machines or structures1%

PatentTitleYear

10,606,000Optical waveguide feedthrough assembly2020 10,527,812Fiber optic cable for inhibiting breaching fluid flow2020 10,451,807Strain isolated fiber Bragg grating sensors2019 10,338,336Fiber optic cable for inhibiting breaching fluid flow2019 10,175,131Small profile pressure and temperature gauges2019 9,841,315'Fiber optic cable for distributed acoustic sensing with increased acoustic sensitivity'2017 9,677,963'Small profile pressure and temperature gauges'2017 9,588,314'Optical transducer with integrated feedthrough'2017 9,435,973'Optical fiber coating to prevent adhesion at high temperatures'2016 9,423,564'Optical waveguide feedthrough assembly'2016 9,389,174'Time division multiplexing (TDM) and wavelength division multiplexing (WDM) sensor arrays'2016 9,377,598'Fiber optic cable systems and methods to prevent hydrogen ingress'2016 9,255,836'Fiber optic cable for distributed acoustic sensing with increased acoustic sensitivity'2016 9,223,101'Optical transducer with integrated feedthrough'2015 9,104,008'Optical fiber coating to prevent adhesion at high temperatures'2015 9,052,244'Array temperature sensing method and system'2015 8,768,111'Array temperature sensing method and system'2014 8,737,774'Array temperature sensing method and system'2014 8,422,835'Optical waveguide feedthrough assembly'2013 8,351,755'Optical waveguide feedthrough assembly'2013 8,111,960'Fiber optic cable systems and methods to prevent hydrogen ingress'2012 8,068,714'Optical waveguide feedthrough assembly'2011 7,963,319'Downhole cable gripping/shearing device'2011 7,844,150'Optical connector assembly'2010 7,769,252'Location marker for distributed temperature sensing systems'2010 7,751,677'Optical fiber feedthrough using axial seals for bi-directional sealing'2010 7,747,126'Optical waveguide feedthrough assembly'2010 7,703,988'Optical connector assembly'2010 7,646,953'Fiber optic cable systems and methods to prevent hydrogen ingress'2010 7,447,390'Pressure transducer with optical waveguide feedthrough assembly'2008 7,373,072'Feedthrough fiber strain relief'2008 7,264,404'Optical connector assembly'2007 6,768,825'Optical sensor device having creep-resistant optical fiber attachments'2004 6,526,212'Optical fiber bulkhead feedthrough assembly and method of making same'2003 6,507,693'Optical filter device having creep-resistant optical fiber attachments'2003 6,490,931'Fused tension-based fiber grating pressure sensor'2002 6,445,868'Optical fiber feedthrough assembly and method of making same'2002 6,317,555'Creep-resistant optical fiber attachment'2001 5,251,708'Modular connector for measurement-while-drilling tool'1993 5,216,242'Apparatus for nuclear logging employing sub wall mounted detectors and modular connector assemblies'1993 5,144,126'Apparatus for nuclear logging employing sub wall mounted detectors and electronics, and modular connector assemblies'1992

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1992–1993Based in Wallingford, CT, US· patent location history

1993–2020Based in Northford, CT, US· patent location history

2002–2016Patents assigned to WEATHERFORD LAMB (23)· patent assignee history

2011–2016Patents assigned to GRUNBECK JOHN J (8)· patent assignee history

2011–2016Patents assigned to DUNPHY JAMES R (6)· patent assignee history

2015–2016Patents assigned to WEATHERFORD TECHNOLOGY HOLDINGS LLC (5)· patent assignee history

2016–2020Patents assigned to WEATHERFORD TECH HOLDINGS LLC (10)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
WEATHERFORD LAMB	23	2002–2016
WEATHERFORD TECH HOLDINGS LLC	10	2016–2020
GRUNBECK JOHN Jself	8	2011–2016
DUNPHY JAMES R	6	2011–2016
WEATHERFORD TECHNOLOGY HOLDINGS LLC	5	2015–2016

Locations

Location	Patents	Span
Northford, CT, US	39	1993–2020
Wallingford, CT, US	2	1992–1993