Harald Hoffmann

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Mannheim, DE

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Patents Grantslast 30 patents

Information Patent Grant
Alkaline cell or battery
- Patent number 7,407,728
- Issue date Aug 5, 2008
- Carl Freudenberg KG
- Wolffried Wenneis
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Grant
Method for surface treatment of fibrous polyphenylene sulfide or po...
- Patent number 6,280,880
- Issue date Aug 28, 2001
- Carl Freudenberg
- Rolf-Peter Schwoebel
- D04 - BRAIDING LACE-MAKING KNITTING TRIMMINGS NON-WOVEN FABRICS
Information Patent Grant
Hydrophilized separator material of nonwoven fabric for electrochem...
- Patent number 5,401,594
- Issue date Mar 28, 1995
- Firma Carl Freudenberg
- Rolf-Peter Schwobel
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Filter mat
- Patent number 4,336,038
- Issue date Jun 22, 1982
- Firma Carl Freudenberg
- Wolfram Schultheiss
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Surface finished fabric
- Patent number 4,205,108
- Issue date May 27, 1980
- Firma Carl Freudenberg
- Klaus Schmidt
- B44 - DECORATIVE ARTS
Information Patent Grant
Storage battery with separator of dumbbell-shaped fibers
- Patent number 4,137,379
- Issue date Jan 30, 1979
- Firma Carl Freudenberg
- Klaus Schmidt
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
Alkaline cell or battery
- Publication number 20030049539
- Publication date Mar 13, 2003
- Wolffried Wenneis
- H01 - BASIC ELECTRIC ELEMENTS