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RICHARD R. KOOPMANN

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  • Sioux Falls, SD, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Air heating apparatus
    • Patent number 9,816,425
    • Issue date Nov 14, 2017
    • JR Koop, Inc.
    • Richard R. Koopmann
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Air heating apparatus
    • Patent number 9,366,170
    • Issue date Jun 14, 2016
    • JR Koop, Inc.
    • Richard R. Koopmann
    • F28 - HEAT EXCHANGE IN GENERAL

Patents Applicationslast 30 patents

  • Information Patent Application

    AIR HEATING APPARATUS
    • Publication number 20110185713
    • Publication date Aug 4, 2011
    • RICHARD R. KOOPMANN
    • F28 - HEAT EXCHANGE IN GENERAL