TREA

Ronald Roy Kovalak

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  • Canal Fulton, OH, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Process for devulcanization of cured rubbers
    • Patent number 6,548,560
    • Issue date Apr 15, 2003
    • The Goodyear Tire & Rubber Company
    • Ronald Roy Kovalak
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Recovery of precious metals from circuit boards
    • Patent number 6,164,571
    • Issue date Dec 26, 2000
    • The Goodyear Tire & Rubber Company
    • Ronald Roy Kovalak
    • B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
  • Information Patent Grant

    Devulcanization of cured rubber
    • Patent number 5,891,926
    • Issue date Apr 6, 1999
    • The Goodyear Tire & Rubber Company
    • Lawrence Keith Hunt
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...