Wilfried Herter

Follow

Person

Rheinfelden, DE

People

Patents Grantslast 30 patents

Information Patent Grant
Benzothiazolium containing azo dyes useful for dyeing polyacrylonit...
- Patent number 5,929,216
- Issue date Jul 27, 1999
- Ciba Specialty Chemicals Corporation
- Wilfried Herter
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Preparation of cationic alkylenediamine dye intermediates
- Patent number 5,223,626
- Issue date Jun 29, 1993
- Ciba-Geigy Corporation
- Janos Vincze
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the dyeing of polyacrylonitrile materials with cationic...
- Patent number 5,163,972
- Issue date Nov 17, 1992
- Ciba-Geigy Corporation
- Wilfried Herter
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...