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Robert James Krowech

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  • Eden Prairie, MN, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Tube spreading device and boiler cleaning system
    • Patent number 10,605,450
    • Issue date Mar 31, 2020
    • HRST, Inc.
    • Robert James Krowech
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    Liner fabrication tool
    • Patent number 10,281,172
    • Issue date May 7, 2019
    • HRST, Inc.
    • Robert James Krowech
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Self-energizing seal
    • Patent number 9,091,349
    • Issue date Jul 28, 2015
    • HRST, Inc.
    • Robert James Krowech
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Boiler cleaning apparatus and method
    • Patent number 8,002,902
    • Issue date Aug 23, 2011
    • Robert J. Krowech
    • F22 - STEAM GENERATION
  • Information Patent Grant

    Economizer for a steam generator
    • Patent number 7,621,237
    • Issue date Nov 24, 2009
    • HRST, Inc.
    • Robert J. Krowech
    • F22 - STEAM GENERATION
  • Information Patent Grant

    Expansion seal
    • Patent number 7,237,806
    • Issue date Jul 3, 2007
    • Robert J. Krowech
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

  • Information Patent Application

    Liner Fabrication Tool
    • Publication number 20170087672
    • Publication date Mar 30, 2017
    • HRST, INC.
    • Robert James Krowech
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Application

    Dual Purpose Heat Transfer Surface Device
    • Publication number 20160376986
    • Publication date Dec 29, 2016
    • HRST, INC.
    • Victor Ferris
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Application

    TUBE SPREADING DEVICE AND BOILER CLEANING SYSTEM
    • Publication number 20160116158
    • Publication date Apr 28, 2016
    • HRST, INC.
    • Robert James Krowech
    • F22 - STEAM GENERATION
  • Information Patent Application

    Self-Energizing Seal
    • Publication number 20140015203
    • Publication date Jan 16, 2014
    • Robert James Krowech
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Dual Chemistry Steam Drum
    • Publication number 20130220238
    • Publication date Aug 29, 2013
    • HRST, INC.
    • Robert James Krowech
    • F22 - STEAM GENERATION
  • Information Patent Application

    Boiler cleaning apparatus and method
    • Publication number 20090282631
    • Publication date Nov 19, 2009
    • Robert J. Krowech
    • F22 - STEAM GENERATION
  • Information Patent Application

    Economizer for a steam generator
    • Publication number 20090050079
    • Publication date Feb 26, 2009
    • Robert J. Krowech
    • F22 - STEAM GENERATION
  • Information Patent Application

    Expansion seal
    • Publication number 20070126229
    • Publication date Jun 7, 2007
    • Robert J. Krowech
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...