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P. David Halstead

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  • Knoxville, TN, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Titanium wire face guard
    • Patent number 6,763,524
    • Issue date Jul 20, 2004
    • Mad Partners
    • P. David Halstead
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Method for making titanium wire face guard
    • Patent number 6,637,091
    • Issue date Oct 28, 2003
    • Mad Partners
    • P. David Halstead
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Helmet fitting system
    • Patent number 6,591,428
    • Issue date Jul 15, 2003
    • Southern Impact Research Center, LLC
    • P. David Halstead
    • Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Information Patent Grant

    Buckle
    • Patent number 6,532,632
    • Issue date Mar 18, 2003
    • P. David Halstead
    • Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Information Patent Grant

    Buckle
    • Patent number 6,497,012
    • Issue date Dec 24, 2002
    • Southern Impact Research Center, LLC
    • Thad Ide
    • Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Information Patent Grant

    Helmet
    • Patent number D466651
    • Issue date Dec 3, 2002
    • Southern Impact Research Center, LLC
    • P. David Halstead
    • D29 - Equipment for safety, protection, and rescue
  • Information Patent Grant

    Buckle
    • Patent number 6,481,066
    • Issue date Nov 19, 2002
    • Southern Impact Research Center, LLC
    • Thad Ide
    • Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Information Patent Grant

    Helmet
    • Patent number 6,434,755
    • Issue date Aug 20, 2002
    • Southern Impact Research Center, LLC
    • P. David Halstead
    • A42 - HEADWEAR
  • Information Patent Grant

    Titanium wire face guard
    • Patent number 6,421,829
    • Issue date Jul 23, 2002
    • Mad Partners
    • P. David Halstead
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Jaw pad for helmet
    • Patent number 6,370,699
    • Issue date Apr 16, 2002
    • Southern Impact Research Center, LLC
    • P. David Halstead
    • A42 - HEADWEAR
  • Information Patent Grant

    Attachment system
    • Patent number 6,371,710
    • Issue date Apr 16, 2002
    • Southern Impact Research Center, LLC
    • Thad Ide
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Helmet fitting system
    • Patent number 6,351,853
    • Issue date Mar 5, 2002
    • Southern Impact Research Center, LLC
    • P. David Halstead
    • A42 - HEADWEAR
  • Information Patent Grant

    Helmet
    • Patent number 6,219,850
    • Issue date Apr 24, 2001
    • Lexington Safety Products, Inc.
    • P. David Halstead
    • A42 - HEADWEAR

Patents Applicationslast 30 patents

  • Information Patent Application

    Method for making titanium wire face guard
    • Publication number 20060143765
    • Publication date Jul 6, 2006
    • MAD PARTNERS, LLC
    • P. David Halstead
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Application

    Method for making titanium wire face guard
    • Publication number 20040262364
    • Publication date Dec 30, 2004
    • P. David Halstead
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Application

    Titanium wire face guard
    • Publication number 20030029905
    • Publication date Feb 13, 2003
    • P. David Halstead
    • A42 - HEADWEAR
  • Information Patent Application

    Helmet fitting system
    • Publication number 20020152541
    • Publication date Oct 24, 2002
    • P. David Halstead
    • A42 - HEADWEAR
  • Information Patent Application

    Buckle
    • Publication number 20020148081
    • Publication date Oct 17, 2002
    • Thad Ide
    • A44 - HABERDASHERY JEWELLERY
  • Information Patent Application

    Titanium wire face guard
    • Publication number 20010054189
    • Publication date Dec 27, 2001
    • P. David Halstead
    • A42 - HEADWEAR
  • Information Patent Application

    Method for making titanium wire face guard
    • Publication number 20010023526
    • Publication date Sep 27, 2001
    • P. David Halstead
    • A42 - HEADWEAR