Granted Patent
Utility
US 5,391,272 · App. 08/208,146
Electrochemical immunoassay methods
Inventors:
John P. O'Daly, Robert W. Henkens, Junguo Zhao, Honghua Zhang
Patented Case
View Patent ↗
Granted: Feb 21, 1995
Filed: Mar 8, 1994
Inventors
John P. O'Daly
Robert W. Henkens
Junguo Zhao
Honghua Zhang
Assignee (at issue)
ANDCARE, 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.