Norbert Wurms

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St. Ursen, CH

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Patents Grantslast 30 patents

Information Patent Grant
Polymeric compounds derived from 2-hydroxy-phenyl-s-triazines subst...
- Patent number 5,869,588
- Issue date Feb 9, 1999
- Ciba Specialty Chemicals Corporation
- Vien Van Toan
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Coating compositions stabilized against damage by light, heat, and...
- Patent number 5,753,729
- Issue date May 19, 1998
- Andreas Valet
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
2-Hydroxyphenyl-s-Triazines substituted with ethylenically unsatura...
- Patent number 5,672,704
- Issue date Sep 30, 1997
- Ciba-Geigy Corporation
- Vien Van Toan
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Latent light stabilizers
- Patent number 5,597,854
- Issue date Jan 28, 1997
- Ciba-Geigy Corporation
- Jean-Luc Birbaum
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Photographic recording material containing a UV absorber
- Patent number 5,538,840
- Issue date Jul 23, 1996
- Ciba-Geigy Corporation
- Vien Van Toan
- C07 - ORGANIC CHEMISTRY