Thomas J. de Groot

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Fairhaven, MA, US

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Patents Grantslast 30 patents

Information Patent Grant
Pressure-sensitive switch, its method of calibration and use in a h...
- Patent number 6,318,497
- Issue date Nov 20, 2001
- Benthos, Inc.
- Thomas J. De Groot
- G01 - MEASURING TESTING
Information Patent Grant
Acoustic transducer
- Patent number 5,789,844
- Issue date Aug 4, 1998
- Benthos, Inc.
- Thomas J. de Groot
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Acoustic transducer
- Patent number 5,646,470
- Issue date Jul 8, 1997
- Benthos, Inc.
- Thomas J. de Groot
- G10 - MUSICAL INSTRUMENTS ACOUSTICS