Patents by Inventor Paul G. Heisey

Paul G. Heisey 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 monitoring animal migration
    Patent number: 4970988
    Abstract: Method and apparatus for monitoring migration of tagged fish which also facilitates their retrieval, including a selectively activated floatation device and securing member and a method for employing them.
    Type: Grant
    Filed: February 1, 1990
    Date of Patent: November 20, 1990
    Assignee: RMC Environmental Services, Inc.
    Inventor: Paul G. Heisey