Timothy P. Donaldson

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Great Totham, GB

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Patents Grantslast 30 patents

Information Patent Grant
Thyratron interrupters
- Patent number 4,639,643
- Issue date Jan 27, 1987
- English Electric Valve Company Limited
- Timothy P. Donaldson
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Electric circuit interrupting devices
- Patent number 4,620,135
- Issue date Oct 28, 1986
- English Electric Valve Company Limited
- Timothy P. Donaldson
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Metal vapor segmented discharge tubes
- Patent number 4,559,466
- Issue date Dec 17, 1985
- English Electric Valve Company Limited
- Timothy P. Donaldson
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Thyratrons
- Patent number 4,429,253
- Issue date Jan 31, 1984
- English Electric Valve Company Limited
- Timothy P. Donaldson
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Thyratrons
- Patent number 4,362,972
- Issue date Dec 7, 1982
- English Electric Valve Co. Limited
- Timothy P. Donaldson
- H01 - BASIC ELECTRIC ELEMENTS