Granted Patent
Utility
US 5,523,348 · App. 08/292,415
Method of preparing collagen-polymer conjugates
Inventors:
Woonza M. Rhee, Donald G. Wallace, Alan S. Michaels, Ramon A. Burns, Jr., Louis Fries, Frank DeLustro, Hanne Bentz
Patented Case
View Patent ↗
Granted: Jun 4, 1996
Filed: Aug 18, 1994
Inventors
Woonza M. Rhee
Donald G. Wallace
Alan S. Michaels
Ramon A. Burns, Jr.
Louis Fries
Frank DeLustro
Hanne Bentz
Assignee (at issue)
COLLAGEN 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.