Granted Patent
Utility
US 6,060,557 · App. 09/000,497
Absorbing agents for water and aqueous liquids and process for their production and use
Inventors:
Kurt Dahmen, Reinmar Peppmoller
Patented Case
View Patent ↗
Granted: May 9, 2000
Filed: Apr 23, 1998
Inventors
Kurt Dahmen
Reinmar Peppmoller
Assignee (at issue)
Stockhausen GmbH & Co. KG
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.