TREA

Ira Edwin Puddington

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  • Ottawa, CA
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Patents Grantslast 30 patents

  • Information Patent Grant

    Treatment of lead sulphide bearing minerals
    • Patent number 5,523,066
    • Issue date Jun 4, 1996
    • Centaur Mining Exploration Limited
    • Robert A. Geisler
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Method of breaking down chemisorption bond of clay-containing heavy...
    • Patent number 4,648,962
    • Issue date Mar 10, 1987
    • Canadian Patents and Development Limited
    • Charles E. Capes
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Grant

    Dewatering of slimes from phosphate ores
    • Patent number 4,229,293
    • Issue date Oct 21, 1980
    • Canadian Patents and Development Limited
    • Bruce F. Caswell
    • B09 - DISPOSAL OF SOLID WASTE RECLAMATION OF CONTAMINED SOIL SOIL
  • Information Patent Grant

    Pressure- and heat-sensitive coatings
    • Patent number 4,158,648
    • Issue date Jun 19, 1979
    • Canadian Patents and Development Limited
    • Frederick W. Meadus
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Transparent pressure-sensitive coatings
    • Patent number 4,111,874
    • Issue date Sep 5, 1978
    • Canadian Patents and Development Limited
    • Frederick W. Meadus
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Ink removal from waste paper
    • Patent number 4,076,578
    • Issue date Feb 28, 1978
    • Canadian Patents and Development Limited
    • Ira E. Puddington
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    Separating organic material from tar sands or oil shale
    • Patent number 4,057,486
    • Issue date Nov 8, 1977
    • Canadian Patents and Development Limited
    • F. Weldon Meadus
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Grant

    Method of separating inorganic material from coal
    • Patent number 4,033,729
    • Issue date Jul 5, 1977
    • Canadian Patents and Development Limited
    • Charles E. Capes
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Grant

    Solids recovery from coal liquefaction slurry
    • Patent number 4,029,567
    • Issue date Jun 14, 1977
    • Canadian Patents and Development Limited
    • Joseph Redmond Farnand
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Grant

    Iron and lead-containing composite metal shot
    • Patent number 3,987,730
    • Issue date Oct 26, 1976
    • Canadian Patents and Development Limited
    • Frederick Weldon Meadus
    • F42 - AMMUNITION BLASTING
  • Information Patent Grant

    Apparatus for separating organic material from particulate tar sand...
    • Patent number 3,984,287
    • Issue date Oct 5, 1976
    • Canadian Patents and Development Limited
    • Frederick Weldon Meadus
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Reinforcing polymers with laundered amorphous lignin
    • Patent number 3,984,362
    • Issue date Oct 5, 1976
    • Canadian Patents and Development Limited
    • Aurelio Frederick Sirianni
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Formation of hollow spherical articles
    • Patent number 3,975,194
    • Issue date Aug 17, 1976
    • Canadian Patents and Development Limited
    • Joseph Redmond Farnand
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Method of producing ball agglomerated particulate material
    • Patent number 3,969,103
    • Issue date Jul 13, 1976
    • Canadian Patents and Development Limited
    • Charles E. Capes
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Pressure sensitive coatings
    • Patent number 3,967,034
    • Issue date Jun 29, 1976
    • Canadian Patents and Development Limited
    • Frederick Weldon Meadus
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS