Frederick Hetzel

Person

North Royalton, OH, US

People

Patents Grantslast 30 patents

Information Patent Grant
Wedge base lamp
- Patent number 6,232,707
- Issue date May 15, 2001
- General Electric Company
- Joseph M. Ranish
- F21 - LIGHTING
Information Patent Grant
Coil assembly for an electrodeless fluorescent lamp
- Patent number 6,084,359
- Issue date Jul 4, 2000
- General Electric Company
- Frederick Hetzel
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Fluorescent lamp
- Patent number D391650
- Issue date Mar 3, 1998
- General Electric Company
- Frederick Hetzel
- D26 - Lighting
Information Patent Grant
Base for electrodeless discharge lamp
- Patent number 5,440,199
- Issue date Aug 8, 1995
- General Electric Company
- Raymond A. Heindl
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Means for converting a lamp with a screw-type base into a lamp with...
- Patent number 4,928,032
- Issue date May 22, 1990
- General Electric Company
- Michael J. Skoch
- F21 - LIGHTING
Information Patent Grant
Method of manufacturing a ballast resistor support member
- Patent number 4,525,230
- Issue date Jun 25, 1985
- General Electric Company
- Frederick Hetzel
- F21 - LIGHTING
Information Patent Grant
Circular fluorescent lamp unit
- Patent number 4,447,861
- Issue date May 8, 1984
- General Electric Company
- Frederick Hetzel
- F21 - LIGHTING
Information Patent Grant
Method of manufacturing a ballast resistor support member and finis...
- Patent number 4,418,328
- Issue date Nov 29, 1983
- General Electric Company
- Frederick Hetzel
- F21 - LIGHTING
Information Patent Grant
Circular fluorescent lamp unit
- Patent number 4,258,287
- Issue date Mar 24, 1981
- General Electric Company
- Frederick Hetzel
- H01 - BASIC ELECTRIC ELEMENTS

Frederick Hetzel

Person

Patents Grantslast 30 patents

Wedge base lamp

Coil assembly for an electrodeless fluorescent lamp

Fluorescent lamp

Base for electrodeless discharge lamp

Means for converting a lamp with a screw-type base into a lamp with...

Method of manufacturing a ballast resistor support member

Circular fluorescent lamp unit

Method of manufacturing a ballast resistor support member and finis...

Circular fluorescent lamp unit