Patents by Inventor David Dooleage

David Dooleage 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).

  • Method and apparatus for constructing hydraulic dams and the like
    Patent number: 5125767
    Abstract: Method and apparatus for making and using barriers formed from water filled bags that are suitable for damming water, directing water flow, dissipating water energy and for other purposes, wherein the apparatus comprises at least a pair of elongate, flexible and impermeable bags interlocked in side-by-side relationship and that may incorporate additional flexible, impermeable, water filled bags in the ends thereof as anchors.
    Type: Grant
    Filed: March 9, 1987
    Date of Patent: June 30, 1992
    Inventor: David Dooleage