Patents by Inventor Michel Riemersma

Michel Riemersma 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).

  • Apparatus for the purification of water
    Publication number: 20040226872
    Abstract: An apparatus for purifying water, comprising an ion exchanger with a water inlet and a product outlet, connected to an inlet of a first filtration step, which comprises one or more nano- and/or RO-filtration membranes and is provided with a first permeate outlet and a first concentrate outlet. According to a first embodiment, the apparatus comprises a subsequent filtration step in which an inlet is connected with the first concentrate outlet, which subsequent filtration step comprises one or several subsequent nano- and/or RO-filtration membranes, and which is provided with a second permeate outlet and second concentrate outlet, which second concentrate outlet is optionally connected with an inlet of a subsequent filtration step.
    Type: Application
    Filed: January 9, 2004
    Publication date: November 18, 2004
    Applicants: DHV Water B.V., Vitens Friesland
    Inventors: Leo Peter Wessels, Michel Riemersma, Walterus Gijsbertus Joseph Van der Meer