Patents by Inventor Udo Hullmeine

Udo Hullmeine 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).

  • Patent number: 3973990
    Abstract: In a galvanic cell, there is provided a solid fluoride ion-conductive electrolyte which is a compound having the formula M.sub.n Pb.sub.1.sub.-n F.sub.2.sub.-n wherein M is at least one element selected from the group consisting of potassium and rubidium; Pb is usually all lead but part of the lead may be replaced by metal more electropositive than lead; F is fluorine; and n is a positive value.
    Type: Grant
    Filed: January 13, 1975
    Date of Patent: August 10, 1976
    Assignee: Varta Batterie Aktiengesellschaft
    Inventors: Waldemar Borger, Udo Hullmeine, Ernst Voss