Patents by Inventor Thorolf Gugenberger

Thorolf Gugenberger 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).

  • Corrosion protection for non-amalgamated zinc
    Patent number: 4404117
    Abstract: A pseudo-passive anode zinc is obtained by doping ultra-pure Zn powder with 0.1 to 0.6% by weight Ag from a silver thiosulfate solution, and then exposing it at elevated temperature to a zincate-containing hydroxide. This exhibits a lower corrosion rate than ultra-pure zinc by itself. The anodic load capacity of the doped zinc approaches that of active zinc, and the tendency towards reactivation after anodic current loading is significantly reduced.
    Type: Grant
    Filed: June 14, 1982
    Date of Patent: September 13, 1983
    Assignee: Varta Batterie Aktiengesellschaft
    Inventor: Thorolf Gugenberger