Patents Assigned to Nature's Own Research Association
  • Patent number: 5778591
    Abstract: Tuna are separated from dolphins who often travel together by temporarily stunning the tuna and allowing the dolphins to continue on course. The tuna stunning is accomplished by creating underwater sounds of a selected frequency range which has a maximum impact on the tuna and a minimum impact on the dolphins.
    Type: Grant
    Filed: January 7, 1997
    Date of Patent: July 14, 1998
    Assignee: Nature's Own Research Association
    Inventors: James L. Oschman, Nora H. Oschman, Keith E. Sommer