Granted Patent
Utility
US 6,713,646 · App. 10/186,251
Degradable crosslinkers, and degradable crosslinked hydrogels comprising them
Inventors:
Hongmin Zhang, Alexander Schwarz
Patented Case
View Patent ↗
Granted: Mar 30, 2004
Filed: Jun 27, 2002
Inventors
Hongmin Zhang
Alexander Schwarz
Assignee (at issue)
Biosphere Medical, 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.