Granted Patent
Utility
US 6,171,867 · App. 08/378,838
Piezoelectric gas sensor
Inventors:
Gernot Feucht, Andreas Schleicher, Georg Frank
Patented Case
View Patent ↗
Granted: Jan 9, 2001
Filed: Jan 26, 1995
Inventors
Gernot Feucht
Andreas Schleicher
Georg Frank
Assignee (at issue)
Ticona LLC
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.