Patents by Inventor Geoffrey M. Roberts

Geoffrey M. Roberts 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).

  • Process for the electrolytic production of manganese dioxide
    Patent number: 4295943
    Abstract: In a process for the production of manganese dioxide comprising electrodepositing manganese dioxide from an aqueous manganese containing electrolyte on to an anode and removing the manganese dioxide from the anode, the improvement comprising using a flexible material as the anode and flexing the anode to fracture and remove the manganese dioxde deposit.
    Type: Grant
    Filed: April 17, 1980
    Date of Patent: October 20, 1981
    Assignee: Diamond Shamrock Technologies S.A.
    Inventors: Nenad R. Tomov, Geoffrey M. Roberts