Richard A. Snellgrove

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Danvers, MA, US

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Patents Grantslast 30 patents

Information Patent Grant
Par lamp with reduced lamp seal temperature
- Patent number 6,781,318
- Issue date Aug 24, 2004
- Osram Sylvania Inc.
- Walter P. Lapatovich
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Chemical composition for mercury free metal halide lamp
- Patent number 6,392,346
- Issue date May 21, 2002
- Osram Sylvania Inc.
- P. Bruce Newell
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Arc tube for high pressure metal vapor discharge lamp
- Patent number 5,208,509
- Issue date May 4, 1993
- GTE Products Corporation
- Richard A. Snellgrove
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method for isolating arc lamp lead-in from frit seal
- Patent number 5,188,554
- Issue date Feb 23, 1993
- GTE Products Corporation
- Richard A. Snellgrove
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Vapor discharge device with electron emissive material
- Patent number 5,111,108
- Issue date May 5, 1992
- GTE Products Corporation
- David A. Goodman
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Arc tube and high pressure discharge lamp including same
- Patent number 5,001,396
- Issue date Mar 19, 1991
- GTE Products Corporation
- Richard A. Snellgrove
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
Par lamp with reduced lamp seal temperature
- Publication number 20030193280
- Publication date Oct 16, 2003
- Walter P. Lapatovich
- H01 - BASIC ELECTRIC ELEMENTS