Robert P. Roggeveen

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Gouda, NL

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Patents Grantslast 30 patents

Information Patent Grant
Diesters and their use in waxes
- Patent number 5,104,586
- Issue date Apr 14, 1992
- Unilever Patent Holdings B.V.
- Hans M. Brand
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Polyalkene having improved dyeability modified with polyamide
- Patent number 4,399,258
- Issue date Aug 16, 1983
- Emery Industries, Inc.
- Adrien G. Hinze
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Polyamide from diamine, triamine and polycarboxylic acid mixture
- Patent number 4,341,670
- Issue date Jul 27, 1982
- Emery Industries, Inc.
- Adrien G. Hinze
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...