Patents Assigned to RMC Environmental Services, Inc.
  • 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