Granted Patent
Utility
US 5,428,024 · App. 08/229,859
High concentration homogenized collagen compositions
Inventors:
George H. Chu, Brenda Trobaugh, Prema R. Rao
Patented Case
View Patent ↗
Granted: Jun 27, 1995
Filed: Apr 19, 1994
Inventors
George H. Chu
Brenda Trobaugh
Prema R. Rao
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.