Alfred L. Van Kleef

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The Hague, NL

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus for fractional distillation under vacuum
- Patent number 4,579,629
- Issue date Apr 1, 1986
- Shell Oil Company
- Dirk Kanbier
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Centrifugal apparatus for gas/liquid separation
- Patent number 3,989,489
- Issue date Nov 2, 1976
- Shell Oil Company
- Willem C. Van't Sant
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL