Patents by Inventor Lawrence J. DeVore

Lawrence J. DeVore 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 harvesting aquatic plants
    Patent number: 5235797
    Abstract: Aquatic plants are harvested from a body of water. The aquatic plants are gathered from the surface of the body of water and transported to a collection zone at a collection point on the body of water. The aquatic plants are then moved from the collection zone to an aquatic plant processing station.
    Type: Grant
    Filed: February 13, 1992
    Date of Patent: August 17, 1993
    Assignee: The Lemna Corporation
    Inventors: Victor V. Sygen, David J. Burton, Lawrence J. DeVore
  • 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
  • Aquatic plant harvester
    Patent number: 5161354
    Abstract: A harvester for harvesting aquatic plants includes a rotatable gate. The rotatable gate subdivides a containment area which is used to hold harvested aquatic plants. The rotatable gate acts to compress harvested aquatic plants and increases harvest capacity.
    Type: Grant
    Filed: May 10, 1991
    Date of Patent: November 10, 1992
    Assignee: The Lemna Corporation
    Inventors: Victor V. Sygen, David M. Anderson, Lawrence J. DeVore