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William A. Null

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  • Sullivan, OH, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Systems and methods for concentrating gas
    • Patent number 12,226,733
    • Issue date Feb 18, 2025
    • VENTEC LIFE SYSTEMS INC.
    • Matthew E. Monaghan
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    System and method for concentrating gas
    • Patent number 12,172,121
    • Issue date Dec 24, 2024
    • VENTEC LIFE SYSTEMS, INC.
    • Alex P. Valentine
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Suspension for wheeled vehicles
    • Patent number 11,213,441
    • Issue date Jan 4, 2022
    • Invacare Corporation
    • Gerold Goertzen
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Suspension for wheeled vehicles
    • Patent number 10,512,572
    • Issue date Dec 24, 2019
    • Invacare Corporation
    • Gerold Goertzen
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Obstacle traversing wheelchair
    • Patent number 9,987,177
    • Issue date Jun 5, 2018
    • Invacare Corporation
    • Gerold Goertzen
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Suspension for wheeled vehicles
    • Patent number 9,925,100
    • Issue date Mar 27, 2018
    • Invacare Corporation
    • Gerold Goertzen
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Pumping device
    • Patent number 9,624,918
    • Issue date Apr 18, 2017
    • Invacare Corporation
    • Gerold Goertzen
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Suspension for wheeled vehicles
    • Patent number 9,364,377
    • Issue date Jun 14, 2016
    • Invacare Corporation
    • Gerold Goertzen
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Obstacle traversing wheelchair
    • Patent number 9,149,398
    • Issue date Oct 6, 2015
    • Invacare Corporation
    • Gerold Goertzen
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Gas concentrator
    • Patent number 9,061,238
    • Issue date Jun 23, 2015
    • Invacare Corporation
    • William A. Null
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Suspension for wheeled vehicles
    • Patent number 8,833,774
    • Issue date Sep 16, 2014
    • Invacare Corporation
    • Gerold Goertzen
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Obstacle traversing wheelchair
    • Patent number 8,636,089
    • Issue date Jan 28, 2014
    • Invacare Corporation
    • Gerold Goertzen
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Suspension for wheeled vehicles
    • Patent number 8,534,679
    • Issue date Sep 17, 2013
    • Invacare Corporation
    • Gerold Goertzen
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Obstacle traversing wheelchair
    • Patent number 6,554,086
    • Issue date Apr 29, 2003
    • Invacare Corporation
    • Gerold Goertzen
    • B60 - VEHICLES IN GENERAL

Patents Applicationslast 30 patents

  • Information Patent Application

    SYSTEM AND METHOD FOR CONCENTRATING GAS
    • Publication number 20250073630
    • Publication date Mar 6, 2025
    • Ventec Life Systems, Inc.
    • Alex P. Valentine
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    Systems and Methods for Concentrating Gas
    • Publication number 20220016566
    • Publication date Jan 20, 2022
    • INVACARE CORPORATION
    • Matthew E. Monaghan
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    SYSTEM AND METHOD FOR CONCENTRATING GAS
    • Publication number 20220016563
    • Publication date Jan 20, 2022
    • INVACARE CORPORATION
    • Alex P. Valentine
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    SUSPENSION FOR WHEELED VEHICLES
    • Publication number 20200206047
    • Publication date Jul 2, 2020
    • INVACARE CORPORATION
    • Gerold Goertzen
    • B60 - VEHICLES IN GENERAL
  • Information Patent Application

    SUSPENSION FOR WHEELED VEHICLES
    • Publication number 20180221225
    • Publication date Aug 9, 2018
    • INVACARE CORPORATION
    • Gerold Goertzen
    • B60 - VEHICLES IN GENERAL
  • Information Patent Application

    SUSPENSION FOR WHEELED VEHICLES
    • Publication number 20160256339
    • Publication date Sep 8, 2016
    • INVACARE CORPORATION
    • Gerold Goertzen
    • B60 - VEHICLES IN GENERAL
  • Information Patent Application

    OBSTACLE TRAVERSING WHEELCHAIR
    • Publication number 20160022516
    • Publication date Jan 28, 2016
    • INVACARE CORPORATION
    • Gerold GOERTZEN
    • B60 - VEHICLES IN GENERAL
  • Information Patent Application

    SUSPENSION FOR WHEELED VEHICLES
    • Publication number 20150061242
    • Publication date Mar 5, 2015
    • INVACARE CORPORATION
    • Gerold Goertzen
    • B60 - VEHICLES IN GENERAL
  • Information Patent Application

    GAS CONCENTRATOR
    • Publication number 20140260991
    • Publication date Sep 18, 2014
    • INVACARE CORPORATION
    • William A. Null
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Application

    OBSTACLE TRAVERSING WHEELCHAIR
    • Publication number 20140138170
    • Publication date May 22, 2014
    • Iinvacare Corporation
    • Gerold Goertzen
    • B60 - VEHICLES IN GENERAL
  • Information Patent Application

    SUSPENSION FOR WHEELED VEHICLES
    • Publication number 20130334778
    • Publication date Dec 19, 2013
    • INVACARE CORPORATION
    • Gerold Goertzen
    • B60 - VEHICLES IN GENERAL
  • Information Patent Application

    PUMPING DEVICE
    • Publication number 20130209297
    • Publication date Aug 15, 2013
    • INVACARE CORPORATION
    • Gerold Goertzen
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    System and method for providing oxygen
    • Publication number 20070065301
    • Publication date Mar 22, 2007
    • Gerold Goertzen
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Application

    Obstacle traversing wheelchair
    • Publication number 20060255581
    • Publication date Nov 16, 2006
    • Gerold Goertzen
    • B60 - VEHICLES IN GENERAL
  • Information Patent Application

    Suspension for wheeled vehicles
    • Publication number 20060244249
    • Publication date Nov 2, 2006
    • Gerold Goertzen
    • B60 - VEHICLES IN GENERAL
  • Information Patent Application

    Mobility aid
    • Publication number 20060157953
    • Publication date Jul 20, 2006
    • Invacare Corporation
    • Gerold Goertzen
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Application

    Mid drive scooter
    • Publication number 20060071440
    • Publication date Apr 6, 2006
    • Gerald E. Fought
    • B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
  • Information Patent Application

    Obstacle traversing wheelchair
    • Publication number 20060021806
    • Publication date Feb 2, 2006
    • Invacare Corporation
    • Gerold Goertzen
    • B60 - VEHICLES IN GENERAL
  • Information Patent Application

    Obstacle traversing wheelchair
    • Publication number 20050225040
    • Publication date Oct 13, 2005
    • Gerold Goertzen
    • B60 - VEHICLES IN GENERAL
  • Information Patent Application

    Self-stabilizing suspension for wheeled vehicles
    • Publication number 20050151360
    • Publication date Jul 14, 2005
    • Invacare Corporation
    • John E. Bertrand
    • B60 - VEHICLES IN GENERAL
  • Information Patent Application

    Suspension with releasable locking system
    • Publication number 20040150204
    • Publication date Aug 5, 2004
    • Gerald Goertzen
    • B60 - VEHICLES IN GENERAL
  • Information Patent Application

    Vehicle having an anti-dive/lockout mechanism
    • Publication number 20040094944
    • Publication date May 20, 2004
    • Gerald Goertzen
    • B60 - VEHICLES IN GENERAL
  • Information Patent Application

    Obstacle traversing wheelchair
    • Publication number 20030168264
    • Publication date Sep 11, 2003
    • Gerold Goertzen
    • B60 - VEHICLES IN GENERAL
  • Information Patent Application

    Obstacle traversing wheelchair
    • Publication number 20030168265
    • Publication date Sep 11, 2003
    • Gerold Goertzen
    • B60 - VEHICLES IN GENERAL