Patents by Inventor Joseph B. MacWalters

Joseph B. MacWalters 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).

  • Bulls eye drill motor
    Patent number: D333959
    Type: Grant
    Filed: March 22, 1991
    Date of Patent: March 16, 1993
    Inventor: Joseph B. MacWalters