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Alan R. Levin

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  • Somerville, NJ, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Swing check valve and method for repairing same
    • Patent number 5,671,769
    • Issue date Sep 30, 1997
    • H-Tech, Inc.
    • Walter Booth
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Bag filter and retainer therefor
    • Patent number 5,624,559
    • Issue date Apr 29, 1997
    • H-Tech, Inc.
    • Alan R. Levin
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Valve indicator and handle assembly
    • Patent number 5,609,185
    • Issue date Mar 11, 1997
    • H-Tech, Inc.
    • Walter Booth
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Bag filter vessel
    • Patent number D377825
    • Issue date Feb 4, 1997
    • H-Tech, Inc.
    • Walter Booth
    • D23 - Environmental heating and cooling
  • Information Patent Grant

    Ball valve with controlled flow variation
    • Patent number 5,551,467
    • Issue date Sep 3, 1996
    • H-Tech, Inc.
    • Walter Booth
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Combined valve indicator and handle
    • Patent number D373176
    • Issue date Aug 27, 1996
    • H-Tech, Inc.
    • Walter Booth
    • D23 - Environmental heating and cooling