Patents by Inventor John Mac

John Mac 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).

  • Solenoid cover
    Patent number: D258953
    Type: Grant
    Filed: December 4, 1978
    Date of Patent: April 21, 1981
    Assignee: Ross Operating Valve Company
    Inventor: John Mac