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Elmo W. Geppelt

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  • Tulsa, OK, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Filter housing
    • Patent number D555226
    • Issue date Nov 13, 2007
    • David Leavitt
    • D23 - Environmental heating and cooling
  • Information Patent Grant

    Method of making a double wall twist tube
    • Patent number 5,410,808
    • Issue date May 2, 1995
    • G.P. Industries, Inc.
    • Elmo W. Geppelt
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Method of manufacturing spiral heat exchanger tubes with an externa...
    • Patent number 5,092,038
    • Issue date Mar 3, 1992
    • G.P. Industries, Inc.
    • Elmo W. Geppelt
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Header and tube for use in a heat exchanger
    • Patent number 5,002,119
    • Issue date Mar 26, 1991
    • G.P. Industries, Inc.
    • Elmo W. Geppelt
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    Heat pipe
    • Patent number 4,995,450
    • Issue date Feb 26, 1991
    • G.P. Industries, Inc.
    • Elmo W. Geppelt
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    Method of manufacturing twisted tubes
    • Patent number 4,437,329
    • Issue date Mar 20, 1984
    • Delta Limited
    • Elmo W. Geppelt
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Tube twisting apparatus
    • Patent number 4,317,353
    • Issue date Mar 2, 1982
    • Delta t Limited
    • Elmo W. Geppelt
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...

Patents Applicationslast 30 patents