Helmut Berger

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Lindlar, DE

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Patents Grantslast 30 patents

Information Patent Grant
Halogen incandescent lamp having U-shaped inner supply lead held me...
- Patent number 6,291,934
- Issue date Sep 18, 2001
- Patent-Treuhand-Gesellschaft fuer elektrische Gluehlampen mbH
- Helmut Berger
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Double-based, double-ended, pinch-sealed electric lamp with integra...
- Patent number 5,932,955
- Issue date Aug 3, 1999
- Patent-Treuhand-Gesellschaft F. Elektrische Gluehlampen mbH
- Helmut Berger
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
Incandescent Bulb and Method for the Production Thereof
- Publication number 20100001627
- Publication date Jan 7, 2010
- OSRAM Gesellschaft mit beschrankter Haftung
- Peter Althof
- H01 - BASIC ELECTRIC ELEMENTS