Granted Patent
Utility
US 6,780,206 · App. 09/997,271
Crystallization process for producing highly concentrated hydrogen peroxide
Inventors:
Stefan Nordhoff, Matthias Creutz, Stefan Gross, Rudolf Wagner
Patented Case
View Patent ↗
Granted: Aug 24, 2004
Filed: Nov 30, 2001
Inventors
Stefan Nordhoff
Matthias Creutz
Stefan Gross
Rudolf Wagner
Assignee (at issue)
Degussa AG
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.