Granted Patent
Utility
US 6,592,763 · App. 09/622,988
Method and device for treating aqueous flows in a bioreactor, an ultrafiltration unit and a membrane filtration unit
Inventors:
Hendrik Rienk Benedictus, Walterus Gijsbertus Joseph Van Der Meer, Jacobus Cornelis Van Winkelen
Patented Case
View Patent ↗
Granted: Jul 15, 2003
Filed: Nov 13, 2000
Inventors
Hendrik Rienk Benedictus
Walterus Gijsbertus Joseph Van Der Meer
Jacobus Cornelis Van Winkelen
Assignees (at issue)
N.V. Waterleiding Friesland
B.V. Beheermaatschappij Frisia
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.