John P. Dorth

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Downers Grove, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Circuit board with connector guide
- Patent number 6,302,700
- Issue date Oct 16, 2001
- Tellabs Operations, Inc.
- Surrinder S. Puri
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Fail safe voice system for integrated services for digital network...
- Patent number 4,853,949
- Issue date Aug 1, 1989
- Rockwell International Corporation
- Ian A. Schorr
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Ringing voltage transfer circuit
- Patent number 4,201,897
- Issue date May 6, 1980
- GTE Automatic Electric Laboratories Incorporated
- John P. Dorth
- H04 - ELECTRIC COMMUNICATION TECHNIQUE