Patents by Inventor Stephen R. Sullivan

Stephen R. Sullivan 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).

  • Patent number: 9068311
    Abstract: The system and methods of the present invention selectively permit aquatic organisms to bypass an obstruction, such as a lock or a dam. Certain embodiments of the system include a container through which aquatic organisms and water may flow, a container pressurizer for pressurizing the container, and a pressure control mechanism.
    Type: Grant
    Filed: March 7, 2013
    Date of Patent: June 30, 2015
    Assignee: Mead and Hunt, Inc.
    Inventors: Ryan Greif, Stephen R. Sullivan, Gilbert Frank Ransley
  • Publication number: 20130236249
    Abstract: The system and methods of the present invention selectively permit aquatic organisms to bypass an obstruction, such as a lock or a dam. Certain embodiments of the system include a container through which aquatic organisms and water may flow, a container pressurizer for pressurizing the container, and a pressure control mechanism.
    Type: Application
    Filed: March 7, 2013
    Publication date: September 12, 2013
    Applicant: MEAD AND HUNT, INC.
    Inventors: Ryan Greif, Stephen R. Sullivan, Gilbert Frank Ransley