Hans Neunhoeffer

Person

Muehltal, DE

People

Patents Grantslast 30 patents

Information Patent Grant
UV filters
- Patent number 7,863,478
- Issue date Jan 4, 2011
- Merck Patent GmbH
- Christophe Carola
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Tricyclic quinoxaline and quinoline derivatives as a UV filter
- Patent number 7,101,537
- Issue date Sep 5, 2006
- Merck PatentGesellschaft
- Frank Pfluecker
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Process for the synthesis of 4,5-diaminopyrazole derivatives useful...
- Patent number 5,663,366
- Issue date Sep 2, 1997
- Wella Aktiengesellschat
- Hans Neunhoeffer
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Composition for the oxidative dyeing of hair containing 4,5-diamino...
- Patent number 5,534,267
- Issue date Jul 9, 1996
- Wella Aktiengesellschaft
- Hans Neunhoeffer
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
N-phenylaminopyrazole derivatives as well as composition and proces...
- Patent number 5,430,159
- Issue date Jul 4, 1995
- Wella Aktiengesellschaft
- Hans Neunhoeffer
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Hair dye containing aminopyrazole derivatives as well as pyrazole d...
- Patent number 5,380,340
- Issue date Jan 10, 1995
- Wella Aktiengesellschaft
- Hans Neunhoeffer
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Oxidation hair dye composition containinng diaminopyrazol derivativ...
- Patent number 5,061,289
- Issue date Oct 29, 1991
- Wella Aktiengesellschaft
- Thomas Clausen
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE

Patents Applicationslast 30 patents

Information Patent Application
Uv Filters
- Publication number 20080038213
- Publication date Feb 14, 2008
- Merck Patent GmbH
- Christophe Carola
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Application
Tricyclic quinoxaline and quinoline derivatives as UV filters
- Publication number 20060222607
- Publication date Oct 5, 2006
- Frank Pflucker
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Application
Preparation containing quinoxaline derivatives
- Publication number 20030207886
- Publication date Nov 6, 2003
- Frank Plücker
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE

Hans Neunhoeffer

Person

Patents Grantslast 30 patents

UV filters

Tricyclic quinoxaline and quinoline derivatives as a UV filter

Process for the synthesis of 4,5-diaminopyrazole derivatives useful...

Composition for the oxidative dyeing of hair containing 4,5-diamino...

N-phenylaminopyrazole derivatives as well as composition and proces...

Hair dye containing aminopyrazole derivatives as well as pyrazole d...

Oxidation hair dye composition containinng diaminopyrazol derivativ...

Patents Applicationslast 30 patents

Uv Filters

Tricyclic quinoxaline and quinoline derivatives as UV filters

Preparation containing quinoxaline derivatives