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Dale Denham

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  • Boulder, CO, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Process for the production of sodium carbonate
    • Patent number 6,479,025
    • Issue date Nov 12, 2002
    • Environmental Projects, Inc.
    • Dale Lee Denham
    • C01 - INORGANIC CHEMISTRY
  • Information Patent Grant

    Recrystallization process
    • Patent number 6,464,736
    • Issue date Oct 15, 2002
    • Environmental Projects, Inc.
    • Wayne C. Hazen
    • C01 - INORGANIC CHEMISTRY
  • Information Patent Grant

    Sodium carbonate recrystallization
    • Patent number 6,284,005
    • Issue date Sep 4, 2001
    • Environmental Projects, Inc.
    • Wayne C. Hazen
    • C01 - INORGANIC CHEMISTRY
  • Information Patent Grant

    Beneficiation of saline minerals
    • Patent number 6,173,840
    • Issue date Jan 16, 2001
    • Environmental Projects, Inc.
    • Rudolph Pruszko
    • C01 - INORGANIC CHEMISTRY
  • Information Patent Grant

    Beneficiation of saline minerals
    • Patent number 6,092,665
    • Issue date Jul 25, 2000
    • Environmental Projects, Inc.
    • Roland Schmidt
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Method for purification and production of saline minerals from trona
    • Patent number 5,911,959
    • Issue date Jun 15, 1999
    • Environmental Projects, Inc.
    • John S. Wold
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Method for beneficiation of trona
    • Patent number 5,736,113
    • Issue date Apr 7, 1998
    • Environmental Projects, Inc.
    • Wayne C. Hazen
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Beneficiation of saline minerals
    • Patent number 5,651,465
    • Issue date Jul 29, 1997
    • Environmental Projects, Inc.
    • Roland Schmidt
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Benefication of saline minerals
    • Patent number 5,470,554
    • Issue date Nov 28, 1995
    • Environmental Projects, Inc.
    • Roland Schmidt
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Zircon-rutile-ilmenite froth flotation process
    • Patent number 5,106,489
    • Issue date Apr 21, 1992
    • Sierra Rutile Limited
    • Roland Schmidt
    • B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...
  • Information Patent Grant

    Process for the regeneration of mineral acids used to solubilize ph...
    • Patent number 4,402,919
    • Issue date Sep 6, 1983
    • Kerr-McGee Corporation
    • Dale Denham
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...

Patents Applicationslast 30 patents

  • Information Patent Application

    Calcining apparatus and process of use
    • Publication number 20030215379
    • Publication date Nov 20, 2003
    • Environmental Projects, Inc.
    • Dale Lee Denham
    • C01 - INORGANIC CHEMISTRY
  • Information Patent Application

    Calcining apparatus and process of use
    • Publication number 20030091486
    • Publication date May 15, 2003
    • Environmental Projects, Inc.
    • Dale Lee Denham
    • C01 - INORGANIC CHEMISTRY
  • Information Patent Application

    Sodium carbonate recrystallization
    • Publication number 20030084547
    • Publication date May 8, 2003
    • Environmental Projects, Inc.
    • Wayne C. Hazen
    • C01 - INORGANIC CHEMISTRY