Granted Patent
Utility
US 6,662,628 · App. 10/181,533
Method for determining the proportion of a gas constituent contained in a gas mixture
Inventors:
Jeno Horvath, Werner Schwarzbacker
Patented Case
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Granted: Dec 16, 2003
Filed: Jul 18, 2002
Inventors
Jeno Horvath
Werner Schwarzbacker
Assignee (at issue)
CONVOTHERM-ELEKTROGERÄTE
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.