Philip D. Gregor

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Acton, MA, US

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Patents Grantslast 30 patents

Information Patent Grant
Method and circuit for enhancing stability during dimming of electr...
- Patent number 5,373,217
- Issue date Dec 13, 1994
- Osram Sylvania Inc.
- Philip D. Gregor
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method and circuit for improving HID lamp starting
- Patent number 5,339,005
- Issue date Aug 16, 1994
- GTE Laboratories Incorporated
- Wojciech W. Byszewski
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Method of hot restarting electrodeless HID lamps
- Patent number 5,287,039
- Issue date Feb 15, 1994
- GTE Laboratories Incorporated
- Philip D. Gregor
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Method and circuit for improved HID lamp maintenance
- Patent number 5,118,994
- Issue date Jun 2, 1992
- GTE Laboratories Incorporated
- Wojciech W. Byszewski
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Method of determining condensate location in an HID lamp
- Patent number 5,086,276
- Issue date Feb 4, 1992
- GTE Laboratories Incorporated
- Yan M. Li
- G01 - MEASURING TESTING