Granted Patent
Utility
US 6,589,495 · App. 09/852,350
Process for reducing the levels of halogenated hydrocarbons
Inventors:
Stefan Fischer, Gunther Pajonk, Frank Witzel
Patented Case
View Patent ↗
Granted: Jul 8, 2003
Filed: May 9, 2001
Inventors
Stefan Fischer
Gunther Pajonk
Frank Witzel
Assignee (at issue)
Siemens Aktiengesellschaft
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.