TREA

Mark A. Zellefrow

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  • Reynoldsburg, OH, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Lawn sweeper
    • Patent number 7,610,646
    • Issue date Nov 3, 2009
    • Ohio Steel Industries, Inc.
    • Mark Zellefrow
    • A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
  • Information Patent Grant

    Shopping cart
    • Patent number D473691
    • Issue date Apr 22, 2003
    • Ohio Steel Industries, Inc.
    • Paul Kolada
    • D34 - Material or article handling equipment

Patents Applicationslast 30 patents

  • Information Patent Application

    LAWN AND GARDEN EQUIPMENT LIFT
    • Publication number 20090121203
    • Publication date May 14, 2009
    • OHIO STEEL INDUSTRIES, INC.
    • Thomas P. Martini
    • B66 - HOISTING LIFTING HAULING
  • Information Patent Application

    LAWN AND GARDEN CART
    • Publication number 20070164526
    • Publication date Jul 19, 2007
    • OHIO STEEL INDUSTRIES, INC.
    • THOMAS P. MARTINI
    • B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
  • Information Patent Application

    Lawn sweeper
    • Publication number 20060230557
    • Publication date Oct 19, 2006
    • Mark Zellefrow
    • A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
  • Information Patent Application

    Animal enclosure system
    • Publication number 20030145799
    • Publication date Aug 7, 2003
    • Rodger Hays
    • A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING