Helmut Glaser

Follow

Person

Singapore, SG

People

Patents Grantslast 30 patents

Information Patent Grant
Button cell
- Patent number 5,486,433
- Issue date Jan 23, 1996
- Varta Batterie Aktiengesellschaft
- Helmut F. Glaser
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Hermetically-sealed alkaline battery
- Patent number 4,897,324
- Issue date Jan 30, 1990
- Varta Batterie Aktiengeselschaft
- Helmut Glaser
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Leak-proofing of button cells
- Patent number 4,258,108
- Issue date Mar 24, 1981
- Varta Batterie, A.G.
- Helmut Glaser
- H01 - BASIC ELECTRIC ELEMENTS