Granted Patent
Utility
US 5,414,135 · App. 08/153,553
Vinyl sulfone coupling of polyoxyalkylenes to proteins
Inventors:
Robert A. Snow, David L. Ladd
Patented Case
View Patent ↗
Granted: May 9, 1995
Filed: Nov 16, 1993
Inventors
Robert A. Snow
David L. Ladd
Assignee (at issue)
Sterling Winthrop 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.