Clark E. McLeod

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Cedar Rapids, IA, US

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Patents Grantslast 30 patents

Information Patent Grant
Long distance telephone switching system with enhanced subscriber s...
- Patent number 5,555,290
- Issue date Sep 10, 1996
- MCI Communications Corporation
- Clark E. McLeod
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Long distance telephone switching system with enhanced subscriber s...
- Patent number 5,550,899
- Issue date Aug 27, 1996
- MCI Communications Corporation
- Clark E. McLeod
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Long distance telephone switching system with enhanced subscriber s...
- Patent number 5,222,120
- Issue date Jun 22, 1993
- MCI Communications Corporation
- Clark E. McLeod
- H04 - ELECTRIC COMMUNICATION TECHNIQUE