Hendrik T. Verkouw

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Amsterdam, NL

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Patents Grantslast 30 patents

Information Patent Grant
Preparation of alkyl aryl sulfonate concentrates having low viscosity
- Patent number 4,891,155
- Issue date Jan 2, 1990
- Shell Oil Company
- George W. Fernley
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Coupling agent
- Patent number 4,185,042
- Issue date Jan 22, 1980
- Shell Oil Company
- Hendrik T. Verkouw
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...