TREA

David H. Nelson

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  • Twentynine Palms, CA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Solar tracking drive mechanism
    • Patent number 4,328,789
    • Issue date May 11, 1982
    • American Solar
    • David H. Nelson
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    Solar tracking device
    • Patent number 4,223,214
    • Issue date Sep 16, 1980
    • American Solar Systems, Inc.
    • Mark E. Dorian
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    Solar energy collector
    • Patent number 4,186,724
    • Issue date Feb 5, 1980
    • American Solar
    • David H. Nelson
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    Tracking system for solar energy collection
    • Patent number 4,154,221
    • Issue date May 15, 1979
    • American Solar
    • David H. Nelson
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    Manufacture of solar reflectors
    • Patent number 4,115,177
    • Issue date Sep 19, 1978
    • Van Dyke; Homer
    • David H. Nelson
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    Solar energy collection system
    • Patent number 4,108,154
    • Issue date Aug 22, 1978
    • Van Dyke; Homer
    • David H. Nelson
    • F24 - HEATING RANGES VENTILATING