Patents by Inventor Roy D. Parrish

Roy D. Parrish 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).

  • Bipolar battery and assembly method
    Patent number: 5098801
    Abstract: Bipolar battery and method of making intercell connection between adjacent cells involving use of an elastomeric collar on the links joining bipolar electrode halves compressing the collars in an opening between adjacent cell compartments and injecting a sealant about the collar to seal off the opening.
    Type: Grant
    Filed: September 12, 1990
    Date of Patent: March 24, 1992
    Assignee: General Motors Corporation
    Inventors: Mark E. Boram, Roy D. Parrish