Patents by Inventor Dave Correll

Dave Correll 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).

  • Double walled underground storage tank
    Patent number: 5220823
    Abstract: An underground storage tank is provided with a load-transmitting material in the annular space between inner and outer walls. The load-transmitting material passes aqueous liquid and the stored product and so may be used with either wet or dry alarm systems.
    Type: Grant
    Filed: June 30, 1992
    Date of Patent: June 22, 1993
    Assignee: Xerxes Corporation
    Inventors: Robin Berg, John Burwell, Dave Correll