TREA

Peter Felgentreu

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  • Hamburg-Harburg, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Plotter pen with coaxial reservoir
    • Patent number 5,172,995
    • Issue date Dec 22, 1992
    • Koh-I-Noor Inc.
    • Peter Felgentreu
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Stylo pen tip and auxiliary removing tool
    • Patent number 5,067,839
    • Issue date Nov 26, 1991
    • Koh-I-Noor Inc.
    • Peter Felgentreu
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Drop-weight and tubular writing instrument
    • Patent number 5,004,365
    • Issue date Apr 2, 1991
    • Koh-I-Noor Rapidograph, Inc.
    • Peter Felgentreu
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Drop-weight and tubular writing instrument
    • Patent number 5,000,606
    • Issue date Mar 19, 1991
    • Koh-I-Noor Rapidograph, Inc.
    • Peter Felgentreu
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
  • Information Patent Grant

    Pivotable pen tip
    • Patent number 4,900,176
    • Issue date Feb 13, 1990
    • Koh-I-Noor Rapidograph, Inc.
    • Peter Felgentreu
    • B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES