Ralf Polley

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Wedel, DE

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Patents Grantslast 30 patents

Information Patent Grant
Free ink system
- Patent number 7,101,104
- Issue date Sep 5, 2006
- Sanford, L.P.
- Wolfgang Witz
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Grant
Free ink system
- Patent number 6,695,517
- Issue date Feb 24, 2004
- Sanford, L.P.
- Wolfgang Witz
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Grant
Free ink system
- Patent number 6,632,041
- Issue date Oct 14, 2003
- Sanford L.P.
- Wolfgang Witz
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Grant
Free ink system
- Patent number 6,322,269
- Issue date Nov 27, 2001
- Sanford I L.P.
- Wolfgang Witz
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES

Patents Applicationslast 30 patents

Information Patent Application
Free ink system
- Publication number 20040170465
- Publication date Sep 2, 2004
- Wolfgang Witz
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Application
Free ink system
- Publication number 20020168215
- Publication date Nov 14, 2002
- Sanford North America
- Wolfgang Witz
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES