Patents by Inventor Edmund R. Gerstein

Edmund R. Gerstein 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 of alerting marine mammals and other mammals underwater of the danger of approaching motor vessels
    Patent number: 5559759
    Abstract: A method of alerting marine mammals and other mammals underwater to the danger of approaching motor vessels includes generating a pulsed acoustical signal at a predetermined source frequency and at a fixed or variable (with boat speed) sound pressure level and projecting the generated signal underwater in a highly directional manner from a motor vessel and in a direction corresponding with the direction of travel of the motor vessel or from fixed hazards which present a danger to mammals underwater; the projected pulsed acoustical signal having an underwater frequency ranging between 3 kHz and 26 kHz.
    Type: Grant
    Filed: December 9, 1994
    Date of Patent: September 24, 1996
    Inventors: Laura A. Gerstein, Edmund R. Gerstein, Joseph E. Blue