Patents by Inventor Waldemar Döring

Waldemar Döring 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).

  • Electrical contact material comprising a cobalt-nickel-iron alloy
    Patent number: 7578893
    Abstract: A material for electrical contacts comprising a martensitic cobalt-nickel-iron alloy with a high strength, a high bendability and a high electrical conductivity, with a cobalt content of 12.0?Co?60.0% by weight, a nickel content of 10.0?Ni?36.0% by weight, remainder iron and an impurity content of less than 0.2 atomic percent, with a martensite temperature Ms of 75° C.?Ms?400° C. in the case of the martensitic variant and ?50° C.?Ms?25° C. in the case of the variant which is naturally hard as a result of cold-forming.
    Type: Grant
    Filed: August 18, 2005
    Date of Patent: August 25, 2009
    Assignee: Vacuumschmelze GmbH & Co. KG
    Inventors: Hartwin Weber, Waldemar Döring, Matthias Schierling