David A. Morris

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Richmond, VA, US

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Patents Grantslast 30 patents

Information Patent Grant
Gathering line leak detection system tester
- Patent number 4,043,180
- Issue date Aug 23, 1977
- Texaco Inc.
- David A. Morris
- E21 - EARTH DRILLING MINING
Information Patent Grant
Pulse-echo method and system for testing wall thicknesses
- Patent number 4,022,055
- Issue date May 10, 1977
- Texaco Inc.
- Norman E. Flournoy
- G01 - MEASURING TESTING
Information Patent Grant
Damping structure for ultrasonic piezoelectric transducer
- Patent number 3,995,179
- Issue date Nov 30, 1976
- Texaco Inc.
- Norman E. Flournoy
- B06 - GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL