GEARHEART INDUSTRIES, INC., A CORP. OF TEXAS
Patent Owner
Stats
- 0 US PATENTS IN FORCE
- 0 US APPLICATIONS PENDING
- Dec 26, 1989 most recent publication
Details
- 0 Issued Patents
- 0 Issued in last 3 years
- 0 Published in last 3 years
- 893 Total Citation Count
- May 22, 1978 Earliest Filing
- 41 Expired/Abandoned/Withdrawn Patents
Patent Activity in the Last 10 Years
Technologies
- No Technology to Display
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Recent Publications
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Recent Patents
- No Recent Patents to Display
Expired/Abandoned/Withdrawn Patents
Patent #
Title
Status
Filing Date
Issue/Pub Date
Intl Class
4709357 Method and apparatus for acoustically investigating a borehole casing cement bondExpiredAug 14, 85Nov 24, 87[G01U]
4697638 Downhole logging and servicing system with manipulatable logging and servicing toolsExpiredJan 22, 86Oct 06, 87[E21B]
4646026 Method and apparatus for measuring resistivity of an earth formationExpiredOct 10, 85Feb 24, 87[G01V]
4620591 Chemical cutting apparatus having selective pressure bleed-offExpiredApr 12, 85Nov 04, 86[E21B]
4530161 Caliper tool using magnetostrictive displacement transducerExpiredJun 15, 84Jul 23, 85[G01B]
4523148 Method and apparatus for determining the spontaneous earth potential log from downhole gradient measurementsExpiredJul 13, 81Jun 11, 85[G01V]
4506156 Earth formation porosity determination with dual epithermal neutron detector systemExpiredJul 31, 81Mar 19, 85[G01V]
4502010 Apparatus including a magnetometer having a pair of U-shaped cores for extended lateral range electrical conductivity loggingExpiredNov 22, 82Feb 26, 85[G01R, G01V]
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