TREA

David Ganbarg

Follow

Person

  • Chicago, IL, US
People

Patents Grantslast 30 patents

  • Information Patent Grant

    Coolant filter composition
    • Patent number 4,980,075
    • Issue date Dec 25, 1990
    • Dober Chemical Corporation
    • John F. Dobrez
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Coolant filter manufacture and composition for use in same
    • Patent number 4,842,731
    • Issue date Jun 27, 1989
    • Dober Chemical Corporation
    • John F. Dobrez
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES