Granted Patent
Utility
US 6,703,444 · App. 09/924,182
Process for cross-linking hyaluronic acid to polymers
Inventors:
Xiaobin Zhao, Catherine Alexander, Jane Fraser
Patented Case
View Patent ↗
Granted: Mar 9, 2004
Filed: Aug 2, 2001
Inventors
Xiaobin Zhao
Catherine Alexander
Jane Fraser
Assignee (at issue)
A-Life Limited
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.