Klaus Gueldenpfennig

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Penfield, NY, US

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Patents Grantslast 30 patents

Information Patent Grant
Expanding switching capability of a time division communication sys...
- Patent number 5,257,260
- Issue date Oct 26, 1993
- Redcom Laboratories Inc.
- Charles J. Breidenstein
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Time division multiplex switching system for interconnecting teleph...
- Patent number 5,239,542
- Issue date Aug 24, 1993
- Redcom Laboratories, Inc.
- Charles J. Breidenstein
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Digital private branch exchange
- Patent number 4,521,879
- Issue date Jun 4, 1985
- Klaus Gueldenpfennig
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Time division digital communication system
- Patent number 4,228,536
- Issue date Oct 14, 1980
- Redcom Laboratories, Inc.
- Klaus Gueldenpfennig
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Attendant console complex
- Patent number 4,166,199
- Issue date Aug 28, 1979
- Stromberg-Carlson Corporation
- Klaus Gueldenpfennig
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Universal answer arrangement for a PABX
- Patent number 3,963,875
- Issue date Jun 15, 1976
- Stromberg-Carlson Corporation
- Klaus Gueldenpfennig
- H04 - ELECTRIC COMMUNICATION TECHNIQUE