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Leonard R. Lefkowitz

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  • Latham, NY, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Air permeable belt for dewatering web in press nip
    • Patent number 5,700,356
    • Issue date Dec 23, 1997
    • Leonard R. Lefkowitz
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    Sliding contact control switch pad
    • Patent number 5,367,199
    • Issue date Nov 22, 1994
    • Triax Technologies
    • Leonard R. Lefkowitz
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Grant

    Jointing of fabric ends
    • Patent number 5,169,570
    • Issue date Dec 8, 1992
    • Scapa Group plc
    • Ian C. Sayers
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    Forming fabric having a nonwoven surface coating
    • Patent number 5,077,116
    • Issue date Dec 31, 1991
    • Leonard R. Lefkowitz
    • D04 - BRAIDING LACE-MAKING KNITTING TRIMMINGS NON-WOVEN FABRICS
  • Information Patent Grant

    Forming fabric for papermaking
    • Patent number 4,981,745
    • Issue date Jan 1, 1991
    • Leonard R. Lefkowitz
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    Regenerable filter
    • Patent number 4,874,407
    • Issue date Oct 17, 1989
    • Leonard R. Lefkowitz
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Nonwoven fabric and method of manufacture
    • Patent number 4,740,409
    • Issue date Apr 26, 1988
    • Leonard R. Lefkowitz
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Control interface
    • Patent number 4,524,348
    • Issue date Jun 18, 1985
    • Leonard R. Lefkowitz
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Grant

    Separator
    • Patent number 4,473,384
    • Issue date Sep 25, 1984
    • Leonard R. Lefkowitz
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Stitch knitted filters for high temperature fluids and method of ma...
    • Patent number 4,181,514
    • Issue date Jan 1, 1980
    • Huyck Corporation
    • Leonard R. Lefkowitz
    • D04 - BRAIDING LACE-MAKING KNITTING TRIMMINGS NON-WOVEN FABRICS
  • Information Patent Grant

    High temperature filter fabrics
    • Patent number 4,113,535
    • Issue date Sep 12, 1978
    • Huyck Corporation
    • Leonard R. Lefkowitz
    • D04 - BRAIDING LACE-MAKING KNITTING TRIMMINGS NON-WOVEN FABRICS
  • Information Patent Grant

    High temperature filter fabrics
    • Patent number 4,070,519
    • Issue date Jan 24, 1978
    • Huyck Corporation
    • Leonard R. Lefkowitz
    • D04 - BRAIDING LACE-MAKING KNITTING TRIMMINGS NON-WOVEN FABRICS

Patents Applicationslast 30 patents

  • Information Patent Application

    Anti-rewet transfer belt
    • Publication number 20080176690
    • Publication date Jul 24, 2008
    • Leonard R. Lefkowitz
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE