Patents by Inventor Doris Humpenoeder-Boegel, legal representative

Doris Humpenoeder-Boegel, legal representative 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