TREA

Helmut Wurfel

Follow

Person

  • Niederwurzbach, DE
People

Patents Grantslast 30 patents

  • Information Patent Grant

    Process for the liquefaction of coal
    • Patent number 4,946,583
    • Issue date Aug 7, 1990
    • GfK Gesellschaft fur Kohleverflussigung mbH
    • Helmut Wurfel
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Grant

    Process for the hydrogenation of coal
    • Patent number 4,689,139
    • Issue date Aug 25, 1987
    • GfK Gesellschaft fur Kohleverflussigung mbH
    • Helmut Wurfel
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Grant

    Process for the hydrogenation of coal using a split feed
    • Patent number 4,492,623
    • Issue date Jan 8, 1985
    • GfK Gesellschaft fur Kohleverflussigung mbH
    • Helmut Wurfel
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Grant

    Process for hydrogenation of coal
    • Patent number 4,487,684
    • Issue date Dec 11, 1984
    • Gfk Gesellschaft f/u/ r Kohleverfl/u/ ssigung mbH
    • Helmut W/u/ rfel
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Grant

    Process for hydrogenation of coal
    • Patent number 4,421,632
    • Issue date Dec 20, 1983
    • Helmut Wurfel
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Grant

    Process for the purification of undistillable solid-containing hydr...
    • Patent number 4,257,870
    • Issue date Mar 24, 1981
    • Saarbergwerke Aktiengesellschaft
    • Sigurd Jorzyk
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Grant

    Process for hydrogenation of coal
    • Patent number 4,214,974
    • Issue date Jul 29, 1980
    • Helmut Wurfel
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Grant

    Process for catalytic hydrogenation of coal
    • Patent number 4,123,348
    • Issue date Oct 31, 1978
    • Saarbergwerke Aktiengesellschaft
    • Helmut Wurfel
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Separation of solids containing residues from liquid fractions of a...
    • Patent number 4,123,349
    • Issue date Oct 31, 1978
    • Saarbergwerke Aktiengesellschaft
    • Helmut Wurfel
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...