Patents by Inventor Hendrik van der Weerd

Hendrik van der Weerd 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).

  • Washing and dewatering of suspensions
    Publication number: 20040099613
    Abstract: The invention relates to a process for washing and dewatering starch suspensions in a single step using a vacuum filter. It also relates to a rotary vacuum drum filter having means for feeding a suspension, sprayers for applying washing liquids and a scraper.
    Type: Application
    Filed: July 14, 2003
    Publication date: May 27, 2004
    Inventors: Gijsbert Theodorus Franke, Hendrik van der Weerd