TREA

Steffen Wunsche

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  • Hamburg, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Flow control for writing or drawing instrument
    • Patent number 5,443,322
    • Issue date Aug 22, 1995
    • rotring international GmbH & Co. KG
    • Walter Jozat
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Tubular writing instrument with suction vent
    • Patent number 5,211,495
    • Issue date May 18, 1993
    • Rotring-Werke Riepe KG
    • Walter Jozat
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Stylo pen tip
    • Patent number 5,052,841
    • Issue date Oct 1, 1991
    • Koh-I-Noor Inc.
    • Walter Jozat
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES