TREA

Donald R. Hughes

Follow

Person

  • Meadville, PA, US
People

Patents Grantslast 30 patents

  • Information Patent Grant

    Rail re-profiling method and apparatus
    • Patent number 10,352,001
    • Issue date Jul 16, 2019
    • GREENLEAF TECHNOLOGY CORPORATION
    • Donald R. Hughes
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Rail re-profiling method and apparatus
    • Patent number 9,834,891
    • Issue date Dec 5, 2017
    • GREENLEAF TECHNOLOGY CORPORATION
    • Donald R. Hughes
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Cutting tool including a cutting insert retaining and adjusting mec...
    • Patent number 9,827,621
    • Issue date Nov 28, 2017
    • GREENLEAF TECHNOLOGY CORPORATION
    • Donald R. Hughes
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Rail re-profiling method and apparatus
    • Patent number 9,617,691
    • Issue date Apr 11, 2017
    • GREENLEAF TECHNOLOGY CORPORATION
    • Donald R. Hughes
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Slotting cutter and inserts for same
    • Patent number 9,073,131
    • Issue date Jul 7, 2015
    • GREENLEAF TECHNOLOGY CORPORATION
    • Donald R. Hughes
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Slotting cutter and inserts for same
    • Patent number 8,267,625
    • Issue date Sep 18, 2012
    • Greenleaf Technology Corporation
    • Donald R. Hughes
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Ball nose end mill and insert
    • Patent number 8,177,459
    • Issue date May 15, 2012
    • Greenleaf Technology Corporation
    • Donald R. Hughes
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Tool with improved resistance to displacement
    • Patent number 6,712,564
    • Issue date Mar 30, 2004
    • Greenleaf Technology Corporation
    • Donald R. Hughes
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Lock picking apparatus
    • Patent number 6,173,595
    • Issue date Jan 16, 2001
    • Donald R. Hughes
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Lock picking apparatus
    • Patent number 6,138,486
    • Issue date Oct 31, 2000
    • Donald R. Hughes
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Lock picking apparatus
    • Patent number 6,041,629
    • Issue date Mar 28, 2000
    • Donald R. Hughes
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Lock picking apparatus
    • Patent number 5,956,984
    • Issue date Sep 28, 1999
    • Donald R. Hughes
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Key operated lock
    • Patent number 4,831,852
    • Issue date May 23, 1989
    • Donald R. Hughes
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Key operated lock
    • Patent number 4,683,739
    • Issue date Aug 4, 1987
    • Donald R. Hughes
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Key assembly
    • Patent number 4,622,834
    • Issue date Nov 18, 1986
    • Donald R. Hughes
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Tubular key manufacturing machine
    • Patent number 4,324,513
    • Issue date Apr 13, 1982
    • Donald R. Hughes
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Key bow cover
    • Patent number 4,102,166
    • Issue date Jul 25, 1978
    • Donald R. Hughes
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Pick for tubular cylinder locks
    • Patent number 4,094,176
    • Issue date Jun 13, 1978
    • Donald R. Hughes
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Universal barrel key apparatus
    • Patent number 4,045,983
    • Issue date Sep 6, 1977
    • Donald R. Hughes
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES

Patents Applicationslast 30 patents

  • Information Patent Application

    RAIL RE-PROFILING METHOD AND APPARATUS
    • Publication number 20200087865
    • Publication date Mar 19, 2020
    • GREENLEAF TECHNOLOGY CORPORATION
    • Donald R. Hughes
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    RAIL RE-PROFILING METHOD AND APPARATUS
    • Publication number 20170159245
    • Publication date Jun 8, 2017
    • GREENLEAF TECHNOLOGY CORPORATION
    • Donald R. Hughes
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    RAIL RE-PROFILING METHOD AND APPARATUS
    • Publication number 20160130768
    • Publication date May 12, 2016
    • Greenleaf Technology Corporation
    • Donald R. Hughes
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    RAIL RE-PROFILING METHOD AND APPARATUS
    • Publication number 20140271012
    • Publication date Sep 18, 2014
    • Donald R. Hughes
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    SLOTTING CUTTER AND INSERTS FOR SAME
    • Publication number 20130028679
    • Publication date Jan 31, 2013
    • Greenleaf Technology Corporation
    • Donald R. Hughes
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    CUTTING TOOL INCLUDING A CUTTING INSERT RETAINING AND ADJUSTING MEC...
    • Publication number 20100232890
    • Publication date Sep 16, 2010
    • Greenleaf Technology Corporation
    • Donald R. Hughes
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    Ball nose end mill and insert
    • Publication number 20100129165
    • Publication date May 27, 2010
    • Greenleaf Technology Corporation
    • Donald R. Hughes
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    Slotting cutter and inserts for same
    • Publication number 20080206007
    • Publication date Aug 28, 2008
    • Greenleaf Technology Corporation
    • Donald R. Hughes
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR