TREA

KEYSTONE ENGINEERING & MFG. LLC

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Organization

  • LEBANON, IN, US
Organizations

Patents Grantslast 30 patents

  • Information Patent Grant

    Cutter with diamond bit tip
    • Patent number 8,528,990
    • Issue date Sep 10, 2013
    • Keystone Engineering & Manufacturing Corporation
    • Winchester E. Latham
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    Wear insert and retainer
    • Patent number 8,424,974
    • Issue date Apr 23, 2013
    • Keystone Engineering & Manufacturing Corporation
    • Winchester E. Latham
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    Cutter bit insert removal system and method
    • Patent number 8,020,941
    • Issue date Sep 20, 2011
    • Keystone Engineering & Manufacturing Corporation
    • Winchester E. Latham
    • Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Information Patent Grant

    Toothed trencher track and elements therefor
    • Patent number 7,665,235
    • Issue date Feb 23, 2010
    • Keystone Engineering & Manufacturing Corporation
    • Winchester E. Latham
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    Tool holder
    • Patent number 7,380,887
    • Issue date Jun 3, 2008
    • Keystone Engineering & Manufacturing Corp.
    • Winchester E. Latham
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Flighting and tool holder
    • Patent number 7,338,134
    • Issue date Mar 4, 2008
    • Keystone Engineering & Manufacturing Corp.
    • Winchester E. Latham
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    Angular cutting tool
    • Patent number 7,290,726
    • Issue date Nov 6, 2007
    • Keystone Engineering & Manufacturing Corp.
    • Winchester E. Latham
    • Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Information Patent Grant

    Angular tool and holding block
    • Patent number 7,108,212
    • Issue date Sep 19, 2006
    • Keystone Engineering & Manufacturing Corporation
    • Winchester E. Latham
    • Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Information Patent Grant

    Replaceable wear surface for bit support
    • Patent number 6,692,083
    • Issue date Feb 17, 2004
    • Keystone Engineering & Manufacturing Corporation
    • Winchester E. Latham
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Portable saw enclosure apparatus
    • Patent number 6,422,228
    • Issue date Jul 23, 2002
    • Keystone Engineering & Manufacturing Corporation
    • Winchester E. Latham
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    Cutting bit holder and support surface
    • Patent number 5,884,979
    • Issue date Mar 23, 1999
    • Keystone Engineering & Manufacturing Corporation
    • Winchester E. Latham
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Apparatus for roadway surface reclaiming drum
    • Patent number 5,842,747
    • Issue date Dec 1, 1998
    • Keystone Engineering & Manufacturing Corporation
    • Latham E. Winchester
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    Double tooth cutter
    • Patent number 5,582,468
    • Issue date Dec 10, 1996
    • Keystone Engineering & Manufacturing Corporation
    • Winchester E. Latham
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Flighting section and tooth holder
    • Patent number 5,052,757
    • Issue date Oct 1, 1991
    • Keystone Engineering & Manufacturing Corporation
    • Winchester E. Latham
    • B28 - WORKING CEMENT, CLAY, OR STONE

Patents Applicationslast 30 patents

  • Information Patent Application

    WEAR INSERT AND RETAINER
    • Publication number 20120104833
    • Publication date May 3, 2012
    • Keystone Engineering & Manufacturing Corporation
    • Winchester E. Latham
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Application

    CUTTER WITH DIAMOND BIT TIP
    • Publication number 20120080930
    • Publication date Apr 5, 2012
    • Keystone Engineering & Manufacturing Corporation
    • Winchester E. Latham
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Application

    Tool holder
    • Publication number 20070245253
    • Publication date Oct 18, 2007
    • Keystone Engineering & Manufacturing Corporation
    • Winchester E. Latham
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    Flighting and tool holder
    • Publication number 20070114835
    • Publication date May 24, 2007
    • Keystone Engineering & Manufacturing Corporation
    • Winchester E. Latham
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Application

    Angular tool and holding block
    • Publication number 20050098015
    • Publication date May 12, 2005
    • Keystone Engineering & Manufacturing Corporation
    • Winchester E. Latham
    • E21 - EARTH DRILLING MINING

Trademarklast 30 trademarks

  • Information Trademark

    85741419 - FLATLINER
    • Serial number 85741419
    • Registration number 4338650
    • Filing date Sep 28, 2012
    • Keystone Engineering & Manufacturing Corporation
    • 7 - Machines and machine tools