TREA

Roger J. Morrell

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  • Bloomington, MN, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Rotary garden tool
    • Patent number 6,050,344
    • Issue date Apr 18, 2000
    • David Arthur Larson
    • A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
  • Information Patent Grant

    Shotgun cartridge rock breaker
    • Patent number 5,474,364
    • Issue date Dec 12, 1995
    • The United States of America as represented by the Secretary of the Interior
    • Peter L. Ruzzi
    • F42 - AMMUNITION BLASTING
  • Information Patent Grant

    Double acting bit holder
    • Patent number 5,335,977
    • Issue date Aug 9, 1994
    • The United States of America as represented by the Secretary of the Interior
    • Roger J. Morrell
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Impact assisted segmented cutterhead
    • Patent number 5,123,710
    • Issue date Jun 23, 1992
    • The United States of America as represented by the Secretary of the Interior
    • Roger J. Morrell
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Concave drag bit cutter device and method
    • Patent number 5,078,219
    • Issue date Jan 7, 1992
    • The United States of America as represented by the Secretary of the Interior
    • Roger J. Morrell
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    Universal ripper miner
    • Patent number 5,013,093
    • Issue date May 7, 1991
    • The United States of America as represented by the Secretary of the Interior
    • Roger J. Morrell
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Microwave assisted hard rock cutting
    • Patent number 5,003,144
    • Issue date Mar 26, 1991
    • The United States of America as represented by the Secretary of the Interior
    • David P. Lindroth
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Universal ripper miner
    • Patent number 4,501,448
    • Issue date Feb 26, 1985
    • The United States of America as represented by the Secretary of the Interior
    • Roger J. Morrell
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Method of in situ mining
    • Patent number 4,249,777
    • Issue date Feb 10, 1981
    • The United States of America as represented by the Secretary of the Interior
    • Roger J. Morrell
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    In-situ leach mining method using branched single well for input an...
    • Patent number 4,222,611
    • Issue date Sep 16, 1980
    • United States of America as represented by the Secretary of the Interior
    • William C. Larson
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Square hole drill
    • Patent number 4,074,778
    • Issue date Feb 21, 1978
    • The United States of America as represented by the Secretary of the Interior
    • Roger J. Morrell
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Borehole aerostatic ground support system
    • Patent number 4,072,015
    • Issue date Feb 7, 1978
    • The United States of America as represented by the Secretary of the Interior
    • Roger J. Morrell
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Prestressed roof support system
    • Patent number 3,971,226
    • Issue date Jul 27, 1976
    • The United States of America as represented by the Secretary of the Interior
    • Roger J. Morrell
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Drilling system using weight of mud
    • Patent number 3,958,650
    • Issue date May 25, 1976
    • The United States of America as represented by the Secretary of the Interior
    • James H. Cobbs
    • E21 - EARTH DRILLING MINING