Granted Patent
Utility
US 5,162,430 · App. 07/433,441
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: Nov 10, 1992
Filed: Nov 14, 1989
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.