Raghu Ramaiah

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Painted Post, NY, US

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Patents Grantslast 30 patents

Information Patent Grant
High-pressure discharge lamp with sealed UV-enhancer
- Patent number 5,942,840
- Issue date Aug 24, 1999
- Philips Electronics North America Corp.
- Tom G. Steere
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Metal halide lamp with improved lumen output and color rendition
- Patent number 5,225,738
- Issue date Jul 6, 1993
- North American Philips Corporation
- Raghu Ramaiah
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Metal halide lamp with dual starting electrodes and improved mainte...
- Patent number 4,992,703
- Issue date Feb 12, 1991
- North American Philips Corp.
- Raghu Ramaiah
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Discharge lamp with discharge vessel rupture shield
- Patent number 4,950,938
- Issue date Aug 21, 1990
- North American Philips Corp.
- Raghu Ramaiah
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Metal halide lamp with improved lumen output
- Patent number 4,866,342
- Issue date Sep 12, 1989
- North American Philips Corporation
- Raghu Ramaiah
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Electric lamp with reduced internal photoelectron production
- Patent number 4,866,328
- Issue date Sep 12, 1989
- North American Philips Corp.
- Raghu Ramaiah
- H01 - BASIC ELECTRIC ELEMENTS