Patents by Inventor Dirk de Winter

Dirk de Winter 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).

  • Hollow fiber filter module and method of manufacturing same
    Patent number: 6183639
    Abstract: A filter module for filtering raw liquid that includes an outer housing having a longitudinal axis and raw liquid inlet and outlet ends. A non-porous member is attached to each end of the outer housing to form a seal between a hollow tube and the outer housing. A plurality of fins are disposed among hollow fiber filter elements to separate the elements into a plurality of bundles. Each of the fins has a plurality of spacers abutting the hollow tube to form liquid pathways between each of the respective fins in the hollow tube.
    Type: Grant
    Filed: September 28, 1999
    Date of Patent: February 6, 2001
    Assignee: Hydranautics
    Inventor: Dirk de Winter
  • Echinacea plant named ‘Alaska’
    Patent number: PP17547
    Abstract: A new and distinct cultivar of Echinacea plant named ‘Alaska’, characterized by its compact growth habit; rapid growth rate; freely and uniform flowering habit; white-colored ray florets; long and continuous flowering period; and good garden performance.
    Type: Grant
    Filed: June 14, 2005
    Date of Patent: April 3, 2007
    Assignee: Compass Plants B.V.
    Inventor: Dirk de Winter