TREA

Hendrik A. Dirkse

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  • Amsterdam, NL
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Patents Grantslast 30 patents

  • Information Patent Grant

    Separator apparatus
    • Patent number 6,830,734
    • Issue date Dec 14, 2004
    • Shell Oil Company
    • Hendrik Arien Dirkse
    • B04 - CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL...
  • Information Patent Grant

    Filtration device
    • Patent number 5,282,877
    • Issue date Feb 1, 1994
    • Shell Oil Co.
    • Phillip E. Unger
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Process for the separation of solids from a mixture of solids and f...
    • Patent number 4,961,863
    • Issue date Oct 9, 1990
    • Shell Oil Company
    • Hendrikus E. A. Van Den Akker
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Apparatus for controlling a flow of granular material
    • Patent number 4,809,886
    • Issue date Mar 7, 1989
    • Shell Oil Company
    • Hendrik A. Dirkse
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL