Granted Patent
Utility
US 6,692,790 · App. 10/212,468
Proteinaceous coating
Inventors:
Yuelian Liu, Klaas De Groot, Pierre Layrolle
Patented Case
View Patent ↗
Granted: Feb 17, 2004
Filed: Aug 5, 2002
Inventors
Yuelian Liu
Klaas De Groot
Pierre Layrolle
Assignee (at issue)
Chienna B.V.
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.