Patents by Inventor Brian J. Midtling

Brian J. Midtling 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 harvesting aquatic plants
    Patent number: 5197263
    Abstract: A duckweed slurry is recovered from a body of water. The duckweed slurry includes duckweed and water from the body of water. The duckweed slurry is transported to a dewatering station. A majority of the water from the duckweed slurry is removed at the dewatering station. Water removed from the duckweed slurry is returned to the body of water.
    Type: Grant
    Filed: September 13, 1991
    Date of Patent: March 30, 1993
    Assignee: The Lemna Corporation
    Inventors: Brian J. Midtling, Lawrence J. DeVore, Victor V. Sygen