Patents by Inventor Winfried Selke

Winfried Selke 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).

  • Equipment for growing algae
    Patent number: 3959923
    Abstract: Water with algae and nutrients follow a meandering flow path, across which are established alternating, wide, dark and narrow, illuminating zones.
    Type: Grant
    Filed: December 4, 1974
    Date of Patent: June 1, 1976
    Assignee: ERNO Raumfahrttechnik GmbH
    Inventor: Winfried Selke