Granted Patent
Utility
US 5,994,517 · App. 08/755,062
Ligands to enhance cellular uptake of biomolecules
Inventors:
Paul O. P. Ts'o, Jon J. Hangeland, Yuan-Chuan Lee
Patented Case
View Patent ↗
Granted: Nov 30, 1999
Filed: Nov 22, 1996
Inventors
Paul O. P. Ts'o
Jon J. Hangeland
Yuan-Chuan Lee
Assignee (at issue)
Paul O. P. Ts'o
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.