James R. Holthaus

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Douglas County, NE, US

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Patents Grantslast 30 patents

Information Patent Grant
Voice security between a composite channel telephone communications...
- Patent number 6,256,491
- Issue date Jul 3, 2001
- Transcript International, Inc.
- Douglas E. Ehlers
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Apparatus and method of secured analog voice communication
- Patent number 6,229,897
- Issue date May 8, 2001
- Transcrypt International, Inc.
- James R. Holthaus
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Apparatus and method for providing proper microphone DC bias curren...
- Patent number 5,838,804
- Issue date Nov 17, 1998
- Transcrypt International, Inc.
- James R. Holthaus
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Apparatus and method for determining the presence and polarity of d...
- Patent number 5,832,076
- Issue date Nov 3, 1998
- Transcrypt International, Inc.
- James R. Holthaus
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method of connecting a scrambler or encryption device to a hand-hel...
- Patent number 5,787,180
- Issue date Jul 28, 1998
- Transcrypt International, Inc.
- Christopher A. Hall
- H04 - ELECTRIC COMMUNICATION TECHNIQUE