Patents by Inventor Todd J. Prewitt

Todd J. Prewitt 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).

  • Freon lock box
    Patent number: 6209574
    Abstract: A lockable box which may be opened, positioned around the gauge ports on the refrigerant lines in an air conditioning system, then closed and locked, thereby preventing unauthorized access to the gauge ports and bleed off of refrigerant from the ports.
    Type: Grant
    Filed: May 4, 2000
    Date of Patent: April 3, 2001
    Inventor: Todd J. Prewitt