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Patrick A. Leonhardt

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  • Yuba City, CA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Crash cushion
    • Patent number 11,970,826
    • Issue date Apr 30, 2024
    • VALTIR, LLC
    • Sean Thompson
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    End terminal
    • Patent number RE47626
    • Issue date Oct 1, 2019
    • Energy Absorption Systems, Inc.
    • Brian Smith
  • Information Patent Grant

    Frangible post for highway barrier end terminals
    • Patent number 10,047,488
    • Issue date Aug 14, 2018
    • Energy Absorption Systems, Inc.
    • Patrick A. Leonhardt
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    Energy absorbing vehicle barrier
    • Patent number 9,790,653
    • Issue date Oct 17, 2017
    • Energy Absorption Systems, Inc.
    • Sean Thompson
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    Crash attenuator
    • Patent number 9,399,845
    • Issue date Jul 26, 2016
    • Energy Absorption Systems, Inc.
    • Michael J. Buehler
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Guardrail system with a releasable post
    • Patent number 9,200,417
    • Issue date Dec 1, 2015
    • Energy Absorption Systems, Inc.
    • Patrick A. Leonhardt
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    End terminal
    • Patent number 8,905,382
    • Issue date Dec 9, 2014
    • Energy Absorption Systems, Inc.
    • Brian Smith
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    Energy absorbing vehicle barrier
    • Patent number 8,469,626
    • Issue date Jun 25, 2013
    • Energy Absorption Systems, Inc.
    • Sean Thompson
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    Guardrail assembly, breakaway support post for a guardrail and meth...
    • Patent number 8,360,400
    • Issue date Jan 29, 2013
    • Energy Absorption Systems, Inc.
    • Patrick A. Leonhardt
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    Method for transferring a barrier
    • Patent number 8,348,546
    • Issue date Jan 8, 2013
    • Energy Absorption Systems, Inc.
    • James B. Welch
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    Guardrail assembly, breakaway support post for a guardrail and meth...
    • Patent number 8,215,619
    • Issue date Jul 10, 2012
    • Energy Absorption Systems, Inc.
    • Patrick A. Leonhardt
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    Energy absorbing vehicle barrier
    • Patent number 8,182,169
    • Issue date May 22, 2012
    • Energy Absorption Systems, Inc.
    • Sean Thompson
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    Barrier transfer device, system and method for the use thereof
    • Patent number 8,109,692
    • Issue date Feb 7, 2012
    • Energy Absorption Systems, Inc.
    • James B. Welch
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    Energy absorbing vehicle barrier
    • Patent number 7,950,870
    • Issue date May 31, 2011
    • Energy Absorption Systems, Inc.
    • Sean Thompson
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    Roadway freezing point monitoring system and method
    • Patent number 7,090,392
    • Issue date Aug 15, 2006
    • Energy Absorption Systems, Inc.
    • Patrick A. Leonhardt
    • G08 - SIGNALLING
  • Information Patent Grant

    Vehicle mounted crash attenuator
    • Patent number 6,905,282
    • Issue date Jun 14, 2005
    • Energy Absorption Systems, Inc.
    • Patrick A. Leonhardt
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Roadway freezing point monitoring system and method
    • Patent number 6,695,469
    • Issue date Feb 24, 2004
    • Energy Absorption Systems, Inc.
    • Patrick A. Leonhardt
    • G08 - SIGNALLING
  • Information Patent Grant

    Highway crash cushion
    • Patent number 6,481,920
    • Issue date Nov 19, 2002
    • Energy Absorption Systems, Inc.
    • Patrick A. Leonhardt
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Self-restoring highway crash attenuator
    • Patent number 6,427,983
    • Issue date Aug 6, 2002
    • Energy Absorption Systems, Inc.
    • Patrick A. Leonhardt
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    Crash cushion
    • Patent number 6,315,490
    • Issue date Nov 13, 2001
    • Energy Absorption Systems, Inc.
    • Patrick A. Leonhardt
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Adjustable tailgate mount for truck mounted attenuator
    • Patent number 6,244,637
    • Issue date Jun 12, 2001
    • Energy Absorption Systems, Inc.
    • Patrick A. Leonhardt
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Highway barrier and guardrail
    • Patent number 6,142,452
    • Issue date Nov 7, 2000
    • Energy Absorption Systems, Inc.
    • Owen S. Denman
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    Method for decelerating a vehicle, highway crash cushion, and energ...
    • Patent number 6,092,959
    • Issue date Jul 25, 2000
    • Energy Absorption Systems, Inc.
    • Patrick A. Leonhardt
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Highway barrier and guardrail
    • Patent number 5,967,497
    • Issue date Oct 19, 1999
    • Energy Absorption Systems, Inc.
    • Owen S. Denman
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES

Patents Applicationslast 30 patents

  • Information Patent Application

    CRASH CUSHION
    • Publication number 20210381181
    • Publication date Dec 9, 2021
    • Trinity Highway Products LLC
    • Sean Thompson
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Application

    CRASH ATTENUATOR
    • Publication number 20150069771
    • Publication date Mar 12, 2015
    • Energy Absorption Systems, Inc.
    • MICHAEL J. BUEHLER
    • B60 - VEHICLES IN GENERAL
  • Information Patent Application

    GUARDRAIL SYSTEM WITH A RELEASABLE POST
    • Publication number 20140145132
    • Publication date May 29, 2014
    • Energy Absorpiton Systems, Inc.
    • PATRICK A. LEONHARDT
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Application

    FRANGIBLE POST FOR HIGHWAY BARRIER END TERMINALS
    • Publication number 20140110652
    • Publication date Apr 24, 2014
    • Energy Absorption Systems, Inc.
    • PATRICK A. LEONHARDT
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Application

    ENERGY ABSORBING VEHICLE BARRIER
    • Publication number 20130266369
    • Publication date Oct 10, 2013
    • Energy Absorption Systems, Inc.
    • Sean Thompson
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Application

    END TERMINAL
    • Publication number 20120217459
    • Publication date Aug 30, 2012
    • Brian Smith
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Application

    GUARDRAIL ASSEMBLY, BREAKAWAY SUPPORT POST FOR A GUARDRAIL AND METH...
    • Publication number 20120211710
    • Publication date Aug 23, 2012
    • Energy Absorption Systems, Inc.
    • Patrick A. Leonhardt
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Application

    METHOD FOR TRANSFERRING A BARRIER
    • Publication number 20120128418
    • Publication date May 24, 2012
    • Energy Absorption Systems, Inc.
    • James B. Welch
    • B66 - HOISTING LIFTING HAULING
  • Information Patent Application

    ENERGY ABSORBING VEHICLE BARRIER
    • Publication number 20110255916
    • Publication date Oct 20, 2011
    • SEAN THOMPSON
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Application

    ENERGY ABSORBING VEHICLE BARRIER
    • Publication number 20110217115
    • Publication date Sep 8, 2011
    • Energy Absorption Systems, Inc.
    • Sean Thompson
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Application

    GUARDRAIL ASSEMBLY, BREAKAWAY SUPPORT POST FOR A GUARDRAIL AND METH...
    • Publication number 20100243978
    • Publication date Sep 30, 2010
    • PATRICK A. LEONHARDT
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Application

    Barrier transfer device, system and method for the use thereof
    • Publication number 20090074507
    • Publication date Mar 19, 2009
    • Energy Absorption Systems, Inc.
    • James B. Welch
    • B66 - HOISTING LIFTING HAULING
  • Information Patent Application

    Anti-icing spray system
    • Publication number 20060113401
    • Publication date Jun 1, 2006
    • Energy Absorption Systems, Inc.
    • Patrick A. Leonhardt
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Application

    Roadway freezing point monitoring system and method
    • Publication number 20050058177
    • Publication date Mar 17, 2005
    • Energy Absorption Systems, Inc.
    • Patrick A. Leonhardt
    • G08 - SIGNALLING
  • Information Patent Application

    Vehicle mounted crash attenuator
    • Publication number 20040145173
    • Publication date Jul 29, 2004
    • Patrick A. Leonhardt
    • B60 - VEHICLES IN GENERAL
  • Information Patent Application

    Highway crash cushion
    • Publication number 20030215285
    • Publication date Nov 20, 2003
    • Patrick A. Leonhardt
    • B60 - VEHICLES IN GENERAL
  • Information Patent Application

    Roadway freezing point monitoring system and method
    • Publication number 20030103547
    • Publication date Jun 5, 2003
    • Energy Absorption Systems, Inc.
    • Patrick A. Leonhardt
    • G08 - SIGNALLING
  • Information Patent Application

    Vehicle mounted crash attenuator
    • Publication number 20030077119
    • Publication date Apr 24, 2003
    • Energy absorption system, Inc.
    • Patrick A. Leonhardt
    • B60 - VEHICLES IN GENERAL