Granted Patent
Utility
US 5,712,316 · App. 08/569,130
Powder-form cross-linked polymers capable of absorbing aqueous liquids and body fluids, method of preparing them and their use
Inventors:
Kurt Dahmen, Edgar Herrmann, Klaus Pfluger
Patented Case
View Patent ↗
Granted: Jan 27, 1998
Filed: Jan 11, 1996
Inventors
Kurt Dahmen
Edgar Herrmann
Klaus Pfluger
Assignee (at issue)
Chemische Fabrik Stockhausen GmbH
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.