Granted Patent
Utility
US 5,093,487 · App. 06/816,548
Low viscosity high molecular weight filter sterilizable hyaluronic acid
Inventors:
Karen K. Brown, Nathan D. Greene, Sandy L. Trump, Sharon A. Bryant
Patented Case
View Patent ↗
Granted: Mar 3, 1992
Filed: Jan 6, 1986
Inventors
Karen K. Brown
Nathan D. Greene
Sandy L. Trump
Sharon A. Bryant
Assignee (at issue)
Mobay Corporation
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.