Granted Patent
Utility
US 5,229,272 · App. 07/498,225
Catalytic antibody components
Inventors:
Sudhir Paul, Michael J. Powell, Richard J. Massey, John Kenten
Patented Case
View Patent ↗
Granted: Jul 20, 1993
Filed: Mar 23, 1990
Inventors
Sudhir Paul
Michael J. Powell
Richard J. Massey
John Kenten
Assignee (at issue)
IGEN Co., LTD
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.