Granted Patent
Utility
US 6,622,542 · App. 09/813,072
Bubble detector and method of use thereof
Inventors:
Daw J. Derek, Jeffrey L. Creech, William R. Patterson
Patented Case
View Patent ↗
Granted: Sep 23, 2003
Filed: Mar 20, 2001
Inventors
Daw J. Derek
Jeffrey L. Creech
William R. Patterson
Assignee (at issue)
TherOx, 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.