Erich Klein

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Holzminden, DE

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Patents Grantslast 30 patents

Information Patent Grant
1,1-Di(C.sub.1 -C.sub.6 -alkyl)-2-phenyl-ethane derivatives as perf...
- Patent number 4,490,284
- Issue date Dec 25, 1984
- Dragoco Gerberding & Co. GmbH
- Ernst-Joachim Brunke
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Polysubstituted cyclopentene derivatives
- Patent number 4,318,831
- Issue date Mar 9, 1982
- Dragoco Gerberding & Co. GmbH
- Erich Klein
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Fixative for perfume compositions
- Patent number 4,313,855
- Issue date Feb 2, 1982
- Dragoco Gerberding & Co. GmbH
- Erich Klein
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Fixative for perfume compositions
- Patent number 4,252,986
- Issue date Feb 24, 1981
- Dragoco Gerberding & Co. GmbH
- Erich Klein
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for manufacturing alkyl-substituted .beta.-resorcyclic acid...
- Patent number 4,142,053
- Issue date Feb 27, 1979
- Dragoco Geberding & Co. GmbH
- Erich Klein
- C11 - ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES FATTY ACIDS...