Patents by Inventor Doris Humpenoeder-Boegel

Doris Humpenoeder-Boegel has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Lead-free copper alloy and a method of manufacture
    Patent number: 7354489
    Abstract: A lead-free copper alloy based on Cu—Zn—Si and a method of manufacture thereof. The copper alloy is built on the basis of copper, zinc and silicon without toxic additives and consists of: 70 to 83% Cu, 1 to 5% Si and the further matrix-active elements: 0.01 to 2% Sn, 0.01 to 0.3% Fe and/or Co, 0.01 to 0.3% Ni, 0.01 to 0.3% Mn, the remainder Zn and unavoidable impurities.
    Type: Grant
    Filed: February 26, 2004
    Date of Patent: April 8, 2008
    Assignee: Wieland-Werke AG
    Inventors: Uwe Hofmann, Wolfgang Dannenmann, Doris Humpenoeder-Boegel, legal representative, Monika Breu, Guenter Schmid, Joerg Seeger, Andreas Boegel
  • Lead-free copper alloy and a method of manufacture
    Publication number: 20040241038
    Abstract: A lead-free copper alloy on the base of Cu—Zn—Sn and a method of manufacture. The copper alloy is built on the base of copper, zinc and tin without toxic additives and consists of: 60 to 70% Cu, 0.5 to 3.5% Sn and the further matrix-active elements: 0.01 to 0.5% Fe and/or Co, 0.01 to 0.5% Ni, 0.01 to 0.5% Mn and/or Si, the remainder Zn and unavoidable impurities. Selectively up to 3% Mg, up to 0.2% P and up to 0.5% Ag, Al, As, Sb, Ti, Zr can be added. The demands for a health-conscious and ecological compatibility are thus naturally met.
    Type: Application
    Filed: February 25, 2004
    Publication date: December 2, 2004
    Inventors: Uwe Hofmann, Monika Breu, Harald Siegele, Andreas Boegel, Doris Humpenoeder-Boegel, Joerg Seeger