Granted Patent
Utility
US 5,891,026 · App. 08/592,919
Extended life disposable pulse oximetry sensor and method of making
Inventors:
Huisun Wang, David R. Rich, Barry J. Feldman
Patented Case
View Patent ↗
Granted: Apr 6, 1999
Filed: Jan 29, 1996
Inventors
Huisun Wang
David R. Rich
Barry J. Feldman
Assignee (at issue)
NTC Technology, Inc.
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.