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Sugar Land, TX, US
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Patents Grants
last 30 patents
Information
Patent Grant
Borehole pressure measuring system
Patent number
4,505,155
Issue date
Mar 19, 1985
Sperry-Sun, Inc.
Joshua M. Jackson
E21 - EARTH DRILLING MINING
Information
Patent Grant
Tubing protector
Patent number
4,484,785
Issue date
Nov 27, 1984
Sperry-Sun, Inc.
Joshua M. Jackson
E21 - EARTH DRILLING MINING
Information
Patent Grant
Borehole acoustic telemetry clock synchronization system
Patent number
4,320,473
Issue date
Mar 16, 1982
Sperry-Sun, Inc.
Miles A. Smither
E21 - EARTH DRILLING MINING
Information
Patent Grant
Borehole acoustic telemetry system synchronous detector
Patent number
4,298,970
Issue date
Nov 3, 1981
Sperry-Sun, Inc.
E. Neil Shawhan
E21 - EARTH DRILLING MINING
Information
Patent Grant
Borehole acoustic telemetry system
Patent number
4,293,937
Issue date
Oct 6, 1981
Sperry-Sun, Inc.
H. Eugene Sharp
E21 - EARTH DRILLING MINING
Information
Patent Grant
Telemetry system
Patent number
4,293,936
Issue date
Oct 6, 1981
Sperry-Sun, Inc.
William H. Cox
E21 - EARTH DRILLING MINING
Information
Patent Grant
Borehole telemetry system automatic gain control
Patent number
4,254,481
Issue date
Mar 3, 1981
Sperry-Sun, Inc.
Miles A. Smither
E21 - EARTH DRILLING MINING
Information
Patent Grant
Side entry clamp and packoff
Patent number
4,200,297
Issue date
Apr 29, 1980
Sperry-Sun, Inc.
Alfred J. Tricon
E21 - EARTH DRILLING MINING
Information
Patent Grant
Borehole tool
Patent number
4,171,578
Issue date
Oct 23, 1979
Sperry-Sun, Inc.
Edwin L. Meador
E21 - EARTH DRILLING MINING
Information
Patent Grant
Bit identification system for borehole acoustical telemetry system
Patent number
4,156,229
Issue date
May 22, 1979
Sperry-Sun, Inc.
Elbert N. Shawhan
E21 - EARTH DRILLING MINING
Information
Patent Grant
Wellbore instrument hanger
Patent number
4,139,836
Issue date
Feb 13, 1979
Sperry-Sun, Inc.
Preston E. Chaney
E21 - EARTH DRILLING MINING
Information
Patent Grant
All angle borehole tool
Patent number
4,083,117
Issue date
Apr 11, 1978
Sperry-Sun, Inc.
Anthony William Russell
E21 - EARTH DRILLING MINING
Information
Patent Grant
Elastomeric inclinometer
Patent number
4,069,591
Issue date
Jan 24, 1978
Sperry-Sun, Inc.
Billy W. McArthur
E21 - EARTH DRILLING MINING
Information
Patent Grant
Lock-in noise rejection circuit
Patent number
4,019,148
Issue date
Apr 19, 1977
Sperry-Sun, Inc.
Elbert N. Shawhan
E21 - EARTH DRILLING MINING
Information
Patent Grant
Borehole pressure measurement
Patent number
4,010,642
Issue date
Mar 8, 1977
Sperry-Sun, Inc.
Billy W. McArthur
E21 - EARTH DRILLING MINING
Information
Patent Grant
Controlled flow impedance in a pressure sensing system
Patent number
3,985,027
Issue date
Oct 12, 1976
Sperry-Sun, Inc.
Alfred J. Tricon
E21 - EARTH DRILLING MINING
Information
Patent Grant
Measuring the angular position of a shaft
Patent number
3,969,662
Issue date
Jul 13, 1976
Sperry-Sun, Inc.
Leroy E. Weaver
G01 - MEASURING TESTING
Patents Applications
last 30 patents
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