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Mark Knapp

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  • Ravenna, OH, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Pipe coupling assembly
    • Patent number 11,629,803
    • Issue date Apr 18, 2023
    • Springseal, Inc.
    • Mark Knapp
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Coupling assembly
    • Patent number D980954
    • Issue date Mar 14, 2023
    • SpringSeal, Inc.
    • Mark Knapp
    • D23 - Environmental heating and cooling
  • Information Patent Grant

    Axle assembly and method of manufacture i'hereof
    • Patent number 11,400,782
    • Issue date Aug 2, 2022
    • Springseal, Inc.
    • Mark Knapp
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Coupling assembly
    • Patent number D865918
    • Issue date Nov 5, 2019
    • Springseal, Inc.
    • Mark Knapp
    • D23 - Environmental heating and cooling
  • Information Patent Grant

    Flexible hinge gasket
    • Patent number 10,046,516
    • Issue date Aug 14, 2018
    • Springseal, Inc.
    • Mark Knapp
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Pipe coupling assembly
    • Patent number 9,752,711
    • Issue date Sep 5, 2017
    • SpringSeal, Inc.
    • Mark Knapp
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Permanently lubricated film gasket and method of manufacture
    • Patent number 9,746,112
    • Issue date Aug 29, 2017
    • SpringSeal, Inc.
    • Mark Knapp
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Sealing gasket
    • Patent number 9,228,684
    • Issue date Jan 5, 2016
    • SpringSeal, Inc.
    • Mark Knapp
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Permanently lubricated film gasket and method of manufacture
    • Patent number 8,834,761
    • Issue date Sep 16, 2014
    • SpringSeal, Inc.
    • Mark Knapp
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Pipe coupling system and method
    • Patent number 8,801,049
    • Issue date Aug 12, 2014
    • SpringSeal, Inc.
    • Mark Knapp
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Flashless welding method and apparatus
    • Patent number 8,747,584
    • Issue date Jun 10, 2014
    • SpringSeal, Inc.
    • Mark Knapp
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Gasket
    • Patent number D706908
    • Issue date Jun 10, 2014
    • SpringSeal, Inc.
    • Mark Knapp
    • D23 - Environmental heating and cooling
  • Information Patent Grant

    Pipe coupling assembly
    • Patent number 8,727,387
    • Issue date May 20, 2014
    • SpringSeal, Inc.
    • Mark Knapp
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Gasket
    • Patent number 8,678,399
    • Issue date Mar 25, 2014
    • SpringSeal, Inc.
    • Mark Knapp
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Gasket
    • Patent number 8,474,830
    • Issue date Jul 2, 2013
    • SpringSeal, Inc.
    • Mark Knapp
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Flashless welding method and apparatus
    • Patent number 7,861,757
    • Issue date Jan 4, 2011
    • SpringSeal, Inc.
    • Mark Knapp
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Molded gasket and method of making
    • Patent number 7,731,884
    • Issue date Jun 8, 2010
    • Advanced Elastomer Systems, L.P.
    • Mark Knapp
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Flashless welding method and apparatus
    • Patent number 7,503,992
    • Issue date Mar 17, 2009
    • SpringSeal, Inc.
    • Mark Knapp
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Permanently lubricated film gasket and method of manufacture
    • Patent number 7,469,905
    • Issue date Dec 30, 2008
    • Springseal Inc.
    • Mark Knapp
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Annular gasket
    • Patent number 6,550,775
    • Issue date Apr 22, 2003
    • Malcolm Mann, Inc.
    • Mark Knapp
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Annular gasket with locking structure
    • Patent number 6,367,802
    • Issue date Apr 9, 2002
    • Malcolm Mann Inc.
    • Mark A. Knapp
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Gasket
    • Patent number 6,336,640
    • Issue date Jan 8, 2002
    • Malcolm Mann Inc.
    • Mark Knapp
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

  • Information Patent Application

    AXLE ASSEMBLY AND METHOD OF MANUFACTURE THEREOF
    • Publication number 20210039464
    • Publication date Feb 11, 2021
    • SpringSeal, Inc.
    • Mark Knapp
    • B60 - VEHICLES IN GENERAL
  • Information Patent Application

    PIPE COUPLING ASSEMBLY
    • Publication number 20200332932
    • Publication date Oct 22, 2020
    • SpringSeal, Inc.
    • Mark Knapp
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    PERMANENTLY LUBRICATED FILM GASKET AND METHOD OF MANUFACTURE
    • Publication number 20140346740
    • Publication date Nov 27, 2014
    • Mark Knapp
    • Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Information Patent Application

    PIPE COUPLING ASSEMBLY
    • Publication number 20140217726
    • Publication date Aug 7, 2014
    • SpringSeal, Inc.
    • Mark Knapp
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    GASKET
    • Publication number 20130270776
    • Publication date Oct 17, 2013
    • SpringSeal, Inc.
    • Mark Knapp
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    PIPE COUPLING SYSTEM AND METHOD
    • Publication number 20120274065
    • Publication date Nov 1, 2012
    • SpringSeal, Inc.
    • Mark Knapp
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    SEALING GASKET
    • Publication number 20120274031
    • Publication date Nov 1, 2012
    • SpringSeal, Inc.
    • Mark Knapp
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    FLEXIBLE HINGE GASKET
    • Publication number 20120038117
    • Publication date Feb 16, 2012
    • SpringSeal, Inc.
    • Mark Knapp
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Application

    FLASHLESS WELDING METHOD AND APPARATUS
    • Publication number 20110094653
    • Publication date Apr 28, 2011
    • SpringSeal, Inc.
    • Mark Knapp
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Application

    HIGH STRENGTH COMPOSITE PIPE GASKET
    • Publication number 20100270753
    • Publication date Oct 28, 2010
    • SpringSeal, Inc.
    • Mark Knapp
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    INTEGRAL PIPE GASKET
    • Publication number 20100181766
    • Publication date Jul 22, 2010
    • Mark Knapp
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Application

    PIPE COUPLING ASSEMBLY
    • Publication number 20090295153
    • Publication date Dec 3, 2009
    • SpringSeal, Inc.
    • Mark Knapp
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    FLASHLESS WELDING METHOD AND APPARATUS
    • Publication number 20090133841
    • Publication date May 28, 2009
    • SpringSeal Inc.
    • Mark Knapp
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Application

    PERMANENTLY LUBRICATED FILM GASKET AND METHOD OF MANUFACTURE
    • Publication number 20090065968
    • Publication date Mar 12, 2009
    • Spring Seal Inc.
    • MarK Knapp
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Gasket
    • Publication number 20080303224
    • Publication date Dec 11, 2008
    • SPRINGSEAL, INC.
    • Mark Knapp
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Molded Gasket and Method of Making
    • Publication number 20070290455
    • Publication date Dec 20, 2007
    • Mark Knapp
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Application

    Flashless welding method and apparatus
    • Publication number 20070181654
    • Publication date Aug 9, 2007
    • MMI Extrusions, LLC
    • Mark Knapp
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Application

    Permanently lubricated film gasket and method of manufacture
    • Publication number 20060192349
    • Publication date Aug 31, 2006
    • SpringSeal Inc.
    • Mark Knapp
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Permanently lubricated gasket
    • Publication number 20040041347
    • Publication date Mar 4, 2004
    • Jefferey Kurtis Beach
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Annular gasket
    • Publication number 20020074741
    • Publication date Jun 20, 2002
    • Malcolm Mann, Inc.
    • Mark Knapp
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...