James D. Kerr

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Allen, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Seismic strong-motion recorder
- Patent number 4,616,320
- Issue date Oct 7, 1986
- Teledyne Industries Inc.
- James D. Kerr
- G01 - MEASURING TESTING
Information Patent Grant
Piezoelectric force-balance accelerometer system
- Patent number 4,473,768
- Issue date Sep 25, 1984
- Teledyne Industries, Inc.
- James D. Kerr
- G01 - MEASURING TESTING
Information Patent Grant
Piezoelectric seismometer
- Patent number 4,188,612
- Issue date Feb 12, 1980
- Teledyne Industries Inc. (Geotech Division)
- James D. Kerr
- G01 - MEASURING TESTING
Information Patent Grant
Piezoelectric stress/strain intrusion detectors
- Patent number 4,012,649
- Issue date Mar 15, 1977
- Teledyne Industries, Inc.
- John C. Cook
- G08 - SIGNALLING