Werner Sieber

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Fribourg, CH

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Patents Grantslast 30 patents

Information Patent Grant
Preparations of pteridine pigments
- Patent number 7,621,994
- Issue date Nov 24, 2009
- Ciba Specialty Chemicals Corporation
- Philippe Bugnon
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Process for preparing fine pigment dispersions
- Patent number 6,211,347
- Issue date Apr 3, 2001
- Ciba Specialty Chemicals Corporation
- Werner Sieber
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Process for preparing fine pigment dispersions
- Patent number 6,071,989
- Issue date Jun 6, 2000
- Ciba Specialty Chemicals Corporation
- Werner Sieber
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Highly disperse magnetic metal oxide particles, processes for their...
- Patent number 5,776,360
- Issue date Jul 7, 1998
- Chiron Diagnostics Corporation
- Werner Sieber
- B82 - NANO-TECHNOLOGY

Patents Applicationslast 30 patents

Information Patent Application
Preparations of Pteridine Pigments
- Publication number 20080295733
- Publication date Dec 4, 2008
- Philippe Bugnon
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
Process for printing substrates according to the ink-jet printing m...
- Publication number 20060111466
- Publication date May 25, 2006
- Patrice Bujard
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...