William A. Graff

Follow

Person

Willoughby, OH, US

People

Patents Grantslast 30 patents

Information Patent Grant
Rounded end halogen lamp with exhaust tube having different glass
- Patent number 4,409,516
- Issue date Oct 11, 1983
- General Electric Company
- George L. Thomas
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Electric lamp with neodymium oxide vitreous coating
- Patent number 4,395,653
- Issue date Jul 26, 1983
- General Electric Company
- William A. Graff
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Frit glass composition
- Patent number 4,359,536
- Issue date Nov 16, 1982
- General Electric Company
- William A. Graff
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Glass to nickel-iron alloy seal
- Patent number 4,342,553
- Issue date Aug 3, 1982
- General Electric Company
- William A. Graff
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Frit glass composition
- Patent number 4,280,843
- Issue date Jul 28, 1981
- General Electric Company
- William A. Graff
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Method of copper staining a glass article
- Patent number 4,253,861
- Issue date Mar 3, 1981
- General Electric Company
- William A. Graff
- C03 - GLASS MINERAL OR SLAG WOOL