Granted Patent
Utility
US 5,643,575 · App. 08/143,403
Non-antigenic branched polymer conjugates
Inventors:
Anthony J. Martinez, Richard B. Greenwald
Patented Case
View Patent ↗
Granted: Jul 1, 1997
Filed: Oct 27, 1993
Inventors
Anthony J. Martinez
Richard B. Greenwald
Assignee (at issue)
Enzon, 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.