Richard E. Kiefer

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Boulder, CO, US

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Patents Grantslast 30 patents

Information Patent Grant
Passive keyless entry system
- Patent number 5,515,036
- Issue date May 7, 1996
- Lectron Products, Inc.
- Thomas J. Waraksa
- G07 - CHECKING-DEVICES
Information Patent Grant
Passive keyless entry system
- Patent number 5,319,364
- Issue date Jun 7, 1994
- Lectron Products, Inc.
- Thomas J. Waraksa
- G07 - CHECKING-DEVICES
Information Patent Grant
Passive keyless entry system
- Patent number 4,942,393
- Issue date Jul 17, 1990
- Lectron Products, Inc.
- Thomas J. Waraksa
- G07 - CHECKING-DEVICES
Information Patent Grant
Successive approximation envelope detection for estimating the ampl...
- Patent number 4,475,398
- Issue date Oct 9, 1984
- Armco Inc.
- David J. Tjornehoj
- G01 - MEASURING TESTING