Charles D. Stephens

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Dallas, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for mapping the terminations of large numbers...
- Patent number 6,879,664
- Issue date Apr 12, 2005
- Charles David Stephens
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Apparatus and method for line pair testing and fault diagnostics
- Patent number 6,763,108
- Issue date Jul 13, 2004
- Communications Technology Corp.
- Charles D. Stephens
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Apparatus and method for line pair testing and fault diagnostics
- Patent number 6,144,721
- Issue date Nov 7, 2000
- Communications Technology Corporation
- Charles D. Stephens
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Active strapping and switching device for telephone line testing
- Patent number 5,528,662
- Issue date Jun 18, 1996
- Communications Technology Corporation
- Charles D. Stephens
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Telephone line tester
- Patent number 5,218,616
- Issue date Jun 8, 1993
- Communications Technology Corporation
- Charles D. Stephens
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Method and apparatus for mapping the terminations of large numbers...
- Publication number 20040136506
- Publication date Jul 15, 2004
- Charles David Stephens
- H04 - ELECTRIC COMMUNICATION TECHNIQUE