Leonhard Wittich

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Langenfeld, DE

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Patents Grantslast 30 patents

Information Patent Grant
Release agents for hydraulic binders
- Patent number 5,709,739
- Issue date Jan 20, 1998
- Henkel Kommanditgesellschaft auf Aktien
- Leonhard Wittich
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Grant
Mixtures of fatty alkyl lower alkyl esters having improved low-temp...
- Patent number 5,389,113
- Issue date Feb 14, 1995
- Henkel Kommanditgesellschaft auf Aktien
- Guenther Demmering
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Fatty acid esters of polyglycerol polyglycol ethers, their producti...
- Patent number 4,895,681
- Issue date Jan 23, 1990
- Henkel Kommanditgesellschaft auf Aktien
- Klaus Herrmann
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...