Granted Patent
Utility
US 6,520,180 · App. 09/714,720
Device for measuring a breathing gas component in a breathing gas line
Inventors:
Dieter Sahmkow, Tillmann von Blumenthal, Bernhard Ludwig, Dirk Fiebelkorn, Hendrik Hantzko
Patented Case
View Patent ↗
Granted: Feb 18, 2003
Filed: Nov 16, 2000
Inventors
Dieter Sahmkow
Tillmann von Blumenthal
Bernhard Ludwig
Dirk Fiebelkorn
Hendrik Hantzko
Assignee (at issue)
Dräger Medizintechnik 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.