Patents by Inventor Duane M. Larsen

Duane M. Larsen 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).

  • Zinc alkaline electrochemical cells with reduced mercury anodes
    Patent number: 4857424
    Abstract: Alkaline zinc-manganese dioxide electrochemical cell containing a small amount of an organosiliconate additive as a means for reducing the amount of mercury used in the zinc amalgam. The organosiliconates added to the anode are film forming organic wetting agents and can be used in mercury containing anodic zinc gels containing other gas suppressors.
    Type: Grant
    Filed: October 11, 1988
    Date of Patent: August 15, 1989
    Assignee: Rayovac Corporation
    Inventors: Duane M. Larsen, Robert B. Dopp