James P. Keenan

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Reading, MA, US

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Patents Grantslast 30 patents

Information Patent Grant
Electric lamp including oxygen getter
- Patent number 4,727,286
- Issue date Feb 23, 1988
- GTE Products Corporation
- James P. Keenan
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Tungsten-halogen lamp with organic and inorganic getters
- Patent number 4,629,935
- Issue date Dec 16, 1986
- GTE Products Corporation
- James P. Keenan
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Long life tungsten halogen lamp with hydrogen bromide and methyl br...
- Patent number 4,453,107
- Issue date Jun 5, 1984
- GTE Products Corporation
- James P. Keenan
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Tungsten halogen lamp containing cyanogen
- Patent number 4,415,834
- Issue date Nov 15, 1983
- GTE Products Corporation
- James P. Keenan
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Tungsten halogen lamp
- Patent number 4,049,988
- Issue date Sep 20, 1977
- GTE Sylvania Incorporated
- James P. Keenan
- H01 - BASIC ELECTRIC ELEMENTS