Patents Assigned to Vitens N.V.
  • Method and device for the purification of an aqueous fluid
    Patent number: 9034179
    Abstract: A method and device for the cleaning of spiral wound membranes. In the device two or more spiral wound membranes are included in series in pressure tubes. The membranes are cleaned by longitudinal rinsing with water, in which a well-dissolvable gas has been dissolved. In the device for the purification of an aqueous fluid with spiral wound membranes, the membranes can be longitudinal rinsed with water, in which a well-dissolvable gas has been dissolved. As gas that is well-dissolvable preferably CO2 gas or a mixture of gasses is used.
    Type: Grant
    Filed: February 10, 2010
    Date of Patent: May 19, 2015
    Assignees: WE CONSULT VIANEN B.V., VITENS N.V.
    Inventors: Leo Peter Wessels, Walterus Gijsbertus Joseph Van Der Meer
  • Markers for detection of strains
    Patent number: 8808996
    Abstract: The invention relates to a method of detecting Legionella pneumophila strains by hybridizing genomic DNA of a sample suspected to contain Legionella to one or morespecific sequence markers, as identified by SEQ ID NO:1 through SEQ ID NO:10 or homologues thereof or in an immunoassay with antibodies specifically recognizing the amino acid sequence of SEQ ID NO: 11 and/or 12. The invention further relates to a kit of parts comprising an array and reference materials for performing a method of the invention.
    Type: Grant
    Filed: July 1, 2009
    Date of Patent: August 19, 2014
    Assignees: Nederlandse Organisatie voor Toegepast-Natuurwetenschappelijk Onderzoek TNO, Vitens N.V.
    Inventors: Frank Henri Johan Schuren, Waatze Aize Atsma
  • METHOD AND DEVICE FOR THE PURIFICATION OF AN AQUEOUS FLUID
    Publication number: 20100200504
    Abstract: A method and device for the cleaning of spiral wound membranes. In the device two or more spiral wound membranes are included in series in pressure tubes. The membranes are cleaned by longitudinal rinsing with water, in which a well-dissolvable gas has been dissolved. In the device for the purification of an aqueous fluid with spiral wound membranes, the membranes can be longitudinal rinsed with water, in which a well-dissolvable gas has been dissolved. As gas that is well-dissolvable preferably CO2 gas or a mixture of gasses is used.
    Type: Application
    Filed: February 10, 2010
    Publication date: August 12, 2010
    Applicants: WE Consult Vianen B.V., Vitens N.V.
    Inventors: Leo Peter Wessels, Walterus Gijsbertus Joseph Van Der Meer