TREA

Gerhard De Vries

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  • Garbsen, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Unvulcanized tread strip for pneumatic vehicle tires
    • Patent number 4,698,245
    • Issue date Oct 6, 1987
    • Continental Gummi-Werke Aktiengesellschaft
    • Gunter Schallmeier
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Raisable extruder head for extruders
    • Patent number 4,666,392
    • Issue date May 19, 1987
    • Continental Gummi-Werke Aktiengesellschaft
    • Klaus Gerloff
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Extruder head for producing flat cohesive profiled webs from resili...
    • Patent number 4,556,376
    • Issue date Dec 3, 1985
    • Continental Gummi-Werke Aktiengesellschaft
    • Willi Sievers
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Extruder
    • Patent number 4,504,150
    • Issue date Mar 12, 1985
    • Continental Gummi-Werke Aktiengesellschaft
    • Gerhard De Vries
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL