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Charles K. Heizer

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  • St. Louis, MO, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Firearm quick release pin with arm extension
    • Patent number 10,605,550
    • Issue date Mar 31, 2020
    • Heizer Defense, LLC
    • Charles K. Heizer
    • F41 - WEAPONS
  • Information Patent Grant

    Slide assembly quick release pin with arm extension
    • Patent number 10,054,381
    • Issue date Aug 21, 2018
    • Heizer Defense, LLC
    • Charles K. Heizer
    • F41 - WEAPONS
  • Information Patent Grant

    Barrel latch safety pin
    • Patent number 10,001,333
    • Issue date Jun 19, 2018
    • Heizer Defense, LLC
    • Charles K. Heizer
    • F41 - WEAPONS
  • Information Patent Grant

    Pistol with short barrel and deep groove rifling
    • Patent number 9,939,223
    • Issue date Apr 10, 2018
    • Heizer Defense, LLC
    • Charles K. Heizer
    • F41 - WEAPONS
  • Information Patent Grant

    Compact semi-automatic firearm
    • Patent number 9,777,980
    • Issue date Oct 3, 2017
    • Heizer Defense, LLC
    • Charles K. Heizer
    • F41 - WEAPONS
  • Information Patent Grant

    Cartridge extractor
    • Patent number 9,518,791
    • Issue date Dec 13, 2016
    • Heizer Defense, LLC
    • Charles K. Heizer
    • F42 - AMMUNITION BLASTING
  • Information Patent Grant

    Modular linear firing system
    • Patent number 9,435,599
    • Issue date Sep 6, 2016
    • Heizer Defense, LLC
    • Charles K. Heizer
    • F41 - WEAPONS
  • Information Patent Grant

    Elongated reciprocating trigger with roller bearings
    • Patent number 9,335,110
    • Issue date May 10, 2016
    • Heizer Defense, LLC
    • Charles K. Heizer
    • F41 - WEAPONS
  • Information Patent Grant

    Multiple barrel sequential firing mechanism
    • Patent number 9,175,918
    • Issue date Nov 3, 2015
    • Heizer Defense, LLC
    • Charles K. Heizer
    • F41 - WEAPONS
  • Information Patent Grant

    Trigger mechanism
    • Patent number 9,163,890
    • Issue date Oct 20, 2015
    • Heizer Defense, LLC
    • Charles K. Heizer
    • F41 - WEAPONS
  • Information Patent Grant

    Firearm having ammunition compartment with H-clip and quick-change...
    • Patent number 9,103,626
    • Issue date Aug 11, 2015
    • Heizer Defense, LLC
    • Charles K. Heizer
    • F41 - WEAPONS
  • Information Patent Grant

    Trigger mechanism with cam surface sear
    • Patent number 8,997,390
    • Issue date Apr 7, 2015
    • Heizer Defense, LLC
    • Charles K. Heizer
    • F41 - WEAPONS
  • Information Patent Grant

    Progessively ported gun barrel
    • Patent number 8,915,174
    • Issue date Dec 23, 2014
    • Heizer Defense, LLC
    • Charles K. Heizer
    • F41 - WEAPONS
  • Information Patent Grant

    Ammunition compartment with strip clip
    • Patent number 8,915,003
    • Issue date Dec 23, 2014
    • Charles K. Heizer
    • F41 - WEAPONS
  • Information Patent Grant

    Pistol
    • Patent number D709580
    • Issue date Jul 22, 2014
    • Heizer Defense, LLC
    • Charles K. Heizer
    • D22 - Arms, pyrotechnics, hunting and fishing equipment
  • Information Patent Grant

    Pistol
    • Patent number D707780
    • Issue date Jun 24, 2014
    • Heizer Defense, LLC
    • Charles K. Heizer
    • D22 - Arms, pyrotechnics, hunting and fishing equipment
  • Information Patent Grant

    Gapless screw rotor device
    • Patent number 7,008,201
    • Issue date Mar 7, 2006
    • Imperial Research LLC
    • Charles K. Heizer
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Offset thread screw rotor device
    • Patent number 6,913,452
    • Issue date Jul 5, 2005
    • Imperial Research LLC
    • Charles K. Heizer
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Twin screw rotor device
    • Patent number 6,719,548
    • Issue date Apr 13, 2004
    • Imperial Research LLC
    • Charles K. Heizer
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Offset thread screw rotor device
    • Patent number 6,719,547
    • Issue date Apr 13, 2004
    • Imperial Research LLC
    • Charles K. Heizer
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Offset thread screw rotor device
    • Patent number 6,599,112
    • Issue date Jul 29, 2003
    • Imperial Research LLC
    • Charles K. Heizer
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES

Patents Applicationslast 30 patents

  • Information Patent Application

    SEMI-AUTOMATIC FIREARM TRIGGER MECHANISM AND SAFETY DEVICE
    • Publication number 20170268843
    • Publication date Sep 21, 2017
    • Heizer Defense, LLC
    • Charles K. Heizer
    • F41 - WEAPONS
  • Information Patent Application

    COMPACT SEMI-AUTOMATIC FIREARM
    • Publication number 20170108304
    • Publication date Apr 20, 2017
    • Charles K. Heizer
    • F41 - WEAPONS
  • Information Patent Application

    MODULAR LINEAR FIRING SYSTEM
    • Publication number 20160003569
    • Publication date Jan 7, 2016
    • Heizer Defense, LLC
    • Charles K. Heizer
    • F41 - WEAPONS
  • Information Patent Application

    MULTIPLE BARREL SEQUENTIAL FIRING MECHANISM
    • Publication number 20150241155
    • Publication date Aug 27, 2015
    • HEIZER AEROSPACE, INC.
    • Charles K. Heizer
    • F41 - WEAPONS
  • Information Patent Application

    AMMUNITION COMPARTMENT WITH STRIP CLIP
    • Publication number 20130199070
    • Publication date Aug 8, 2013
    • Charles K. Heizer
    • F41 - WEAPONS
  • Information Patent Application

    TRIGGER MECHANISM
    • Publication number 20130104436
    • Publication date May 2, 2013
    • Heizer Defense, LLC
    • Charles K. Heizer
    • F41 - WEAPONS
  • Information Patent Application

    Air cycle system with variable mix recuperator
    • Publication number 20070084225
    • Publication date Apr 19, 2007
    • Imperial Research LLC
    • Charles K. Heizer
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Application

    Gapless screw rotor device
    • Publication number 20050129561
    • Publication date Jun 16, 2005
    • Charles K. Heizer
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    Offset thread screw rotor device
    • Publication number 20040151609
    • Publication date Aug 5, 2004
    • Charles K. Heizer
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    Offset thread screw rotor device
    • Publication number 20030077198
    • Publication date Apr 24, 2003
    • Charles K. Heizer
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    Offset thread screw rotor device
    • Publication number 20030077197
    • Publication date Apr 24, 2003
    • Charles K. Heizer
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES