Patents by Inventor John A. Simpson, Sr.

John A. Simpson, Sr. 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).

  • Battery storage panel
    Patent number: D332442
    Type: Grant
    Filed: April 25, 1991
    Date of Patent: January 12, 1993
    Inventor: John A. Simpson, Sr.