Roger K. Freeman

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Plymouth, MA, US

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Patents Grantslast 30 patents

Information Patent Grant
Electrochemical cell having coupling members with radial channels
- Patent number 4,672,011
- Issue date Jun 9, 1987
- GTE Government Systems Corporation
- Franz Goebel
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Structure for electrochemical batteries
- Patent number 4,535,038
- Issue date Aug 13, 1985
- GTE Communications Products Corporation
- Gerard H. Boyle
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Anode structure for an electrochemical cell
- Patent number 4,283,470
- Issue date Aug 11, 1981
- GTE Products Corporation
- Roger K. Freeman
- H01 - BASIC ELECTRIC ELEMENTS