Klaus Grychtol

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Bad Duerkheim, DT

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Patents Grantslast 30 patents

Information Patent Grant
Production of aminobenzaldehydes
- Patent number 3,971,821
- Issue date Jul 27, 1976
- BASF Aktiengesellschaft
- Hans Baumann
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Basic arylmercaptonaphtholactam dyes
- Patent number 3,963,747
- Issue date Jun 15, 1976
- BASF Aktiengesellschaft
- Ernst Schefczik
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Quaternized 6-diethylamino-2-[benzimidazolyl-(2)]benzofuran
- Patent number 3,932,446
- Issue date Jan 13, 1976
- BASF Aktiengesellschaft
- Klaus Grychtol
- C07 - ORGANIC CHEMISTRY