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Robert Cohen

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  • Ein Sarid, IL
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Patents Grantslast 30 patents

  • Information Patent Grant

    Durable semi-rigid single-layer flexible duct
    • Patent number 8,997,796
    • Issue date Apr 7, 2015
    • Steven Allan Liebson
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Durable semi-rigid flexible duct
    • Patent number 8,469,062
    • Issue date Jun 25, 2013
    • Steven Allan Liebson
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Semi-rigid flexible duct
    • Patent number 8,439,085
    • Issue date May 14, 2013
    • Yissum Research Development Company of the Hebrew University of Jerusalem Ltd.
    • Steven Liebson
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Duct connector ring
    • Patent number D651291
    • Issue date Dec 27, 2011
    • GLV International (1995) Ltd.
    • Steven Allan Liebson
    • D23 - Environmental heating and cooling
  • Information Patent Grant

    Duct adaptor ring
    • Patent number D646373
    • Issue date Oct 4, 2011
    • GLV International (1995) Ltd.
    • Steven Allan Liebson
    • D23 - Environmental heating and cooling
  • Information Patent Grant

    Draft blocker
    • Patent number D635239
    • Issue date Mar 29, 2011
    • GLV International (1995) Ltd.
    • Steven Allan Liebson
    • D23 - Environmental heating and cooling
  • Information Patent Grant

    Flexible duct
    • Patent number D566826
    • Issue date Apr 15, 2008
    • G.L.V. International (1995)Ltd;
    • Graeme Liebson
    • D23 - Environmental heating and cooling

Patents Applicationslast 30 patents

  • Information Patent Application

    DURABLE SEMI-RIGID SINGLE-LAYER FLEXIBLE DUCT
    • Publication number 20130153076
    • Publication date Jun 20, 2013
    • Steven Allan Liebson
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Application

    SEMI-RIGID FLEXIBLE DUCT
    • Publication number 20100154914
    • Publication date Jun 24, 2010
    • Steven LIEBSON
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Application

    DURABLE SEMI-RIGID FLEXIBLE DUCT
    • Publication number 20100139801
    • Publication date Jun 10, 2010
    • Steven Liebson
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Application

    Semi-rigid flexible duct
    • Publication number 20070235101
    • Publication date Oct 11, 2007
    • Steven Liebson
    • D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...