TREA

D & C Limited

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  • Monrovia, LR
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Patents Grantslast 30 patents

  • Information Patent Grant

    Filter press apparatus
    • Patent number 6,036,859
    • Issue date Mar 14, 2000
    • D & C Limited
    • Henri Gerhard Willem Pierson
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Endless belt filter
    • Patent number 5,965,020
    • Issue date Oct 12, 1999
    • D & C Limited
    • Henri Gerhard Willem Pierson
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Separation method
    • Patent number 5,482,627
    • Issue date Jan 9, 1996
    • D & C Limited
    • Henri G. W. Pierson
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Filter press apparatus
    • Patent number 5,482,623
    • Issue date Jan 9, 1996
    • D & C Limited
    • Henri G. W. Pierson
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Horizontal belt filter
    • Patent number 5,368,732
    • Issue date Nov 29, 1994
    • D & C Limited
    • Henri G. W. Pierson
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Filter apparatus
    • Patent number 5,366,626
    • Issue date Nov 22, 1994
    • D & C Limited
    • Henri G. W. Pierson
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Filtration apparatus
    • Patent number 5,130,021
    • Issue date Jul 14, 1992
    • D & C Limited
    • Henri G. W. Pierson
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Web guidance and tracking mechanism for a continuous belt filter
    • Patent number 5,086,963
    • Issue date Feb 11, 1992
    • D & C Limited
    • Henri G. W. Pierson
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Horizontal belt vacuum filtration apparatus
    • Patent number 5,019,258
    • Issue date May 28, 1991
    • D & C Limited
    • Henri G. W. Pierson
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Filtration apparatus with integral drying by electromagnetic radiation
    • Patent number 4,979,315
    • Issue date Dec 25, 1990
    • D & C Limited
    • Henri G. W. Pierson
    • F26 - DRYING
  • Information Patent Grant

    Intermittent vacuum filter apparatus incorporating a double valve a...
    • Patent number 4,857,194
    • Issue date Aug 15, 1989
    • D & C Limited
    • Henri G. W. Pierson
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL

Patents Applicationslast 30 patents

Trademarklast 30 trademarks