John W. Sims

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Weedsport, NY, US

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Patents Grantslast 30 patents

Information Patent Grant
Method for forming tungsten electrode
- Patent number 5,690,532
- Issue date Nov 25, 1997
- Welch Allyn, Inc.
- John W. Sims
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Etched electrode for metal halide discharge lamps
- Patent number 5,539,273
- Issue date Jul 23, 1996
- Welch Allyn, Inc.
- John W. Sims
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Electrode for metal halide discharge lamp
- Patent number 5,420,477
- Issue date May 30, 1995
- Welch Allyn, Inc.
- John W. Sims
- H01 - BASIC ELECTRIC ELEMENTS