Henricus P. M. Tomassen

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Amsterdam, NL

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Patents Grantslast 30 patents

Information Patent Grant
Polymeric flow improver additives
- Patent number 5,721,201
- Issue date Feb 24, 1998
- Shell Oil Company
- Henricus Paulus Maria Tomassen
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Hydrocarbon oil compositions having improved cold flow properties
- Patent number 5,585,337
- Issue date Dec 17, 1996
- Shell Oil Company
- Janet A. Day
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Hydrocarbon oil compositions
- Patent number 5,246,608
- Issue date Sep 21, 1993
- Shell Oil Company
- Marinus J. Reynhout
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Oil compositions
- Patent number 5,215,647
- Issue date Jun 1, 1993
- Shell Oil Company
- Eit Drent
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Diesel fuel additives
- Patent number 5,139,534
- Issue date Aug 18, 1992
- Shell Oil Company
- Henricus P. M. Tomassen
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS