WARREN AUTOMATIC TOOL COMPANY

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HOUSTON, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Rate of penetration recorder
- Patent number 4,367,477
- Issue date Jan 4, 1983
- Warren Automatic Tool Company
- Ethell J. Dower
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method and apparatus for controlling back pressure
- Patent number 4,355,784
- Issue date Oct 26, 1982
- Warren Automatic Tool Company
- Lester L. Cain
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method and apparatus for controlling a surging flow in a closed con...
- Patent number 4,099,536
- Issue date Jul 11, 1978
- Warren Automatic Tool Co.
- Ethell J. Dower
- G05 - CONTROLLING REGULATING
Information Patent Grant
Apparatus for pneumatically monitoring conditions of a well circula...
- Patent number 4,000,645
- Issue date Jan 4, 1977
- Warren Automatic Tool Co.
- Ethell J. Dower
- E21 - EARTH DRILLING MINING
Information Patent Grant
Apparatus for eliminating differential pressure surges
- Patent number 3,994,166
- Issue date Nov 30, 1976
- Warren Automatic Tool Co.
- Ethell J. Dower
- E21 - EARTH DRILLING MINING
Information Patent Grant
Pneumatic apparatus for measuring rate of movement
- Patent number 3,994,176
- Issue date Nov 30, 1976
- Warren Automatic Tool Co.
- Ethell J. Dower
- G01 - MEASURING TESTING

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Trademarklast 30 trademarks

Information Trademark
73260533 - W WARREN AUTOMATIC TOOL CO.
- Serial number 73260533
- Registration number 1176989
- Filing date May 2, 1980
- Warren Automatic Tool Company
- 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information Trademark
73258784 - WATCO
- Serial number 73258784
- Registration number 1191569
- Filing date Apr 21, 1980
- Warren Automatic Tool Company
- 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information Trademark
73091903 - CIRCULATOR
- Serial number 73091903
- Registration number 1104228
- Filing date Jun 28, 1976
- WARREN AUTOMATIC TOOL CO.
- 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information Trademark
72283182 - BARREL-O-GRAF
- Serial number 72283182
- Registration number 863114
- Filing date Oct 23, 1967
- WARREN AUTOMATIC TOOL COMPANY
- 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments