Granted Patent
Utility
US 6,579,951 · App. 09/587,983
Chain-extended or crosslinked polyethylene oxide/polypropylene oxide/polyethylene oxide block polymer with optional polyester blocks
Inventors:
Daniel Cohn, Avraham Y. Levi
Patented Case
View Patent ↗
Granted: Jun 17, 2003
Filed: Jun 6, 2000
Inventors
Daniel Cohn
Avraham Y. Levi
Assignee (at issue)
Life Medical Sciences, 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.