Granted Patent
Utility
US 6,749,668 · App. 10/174,549
Process for the recovery of combustible components of a gas stream
Inventors:
Willi Hofen, Georg Thiele, Wolfgang Wöll
Patented Case
View Patent ↗
Granted: Jun 15, 2004
Filed: Jun 18, 2002
Inventors
Willi Hofen
Georg Thiele
Wolfgang Wöll
Assignees (at issue)
Degussa AG
UHDE 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.