Granted Patent
Utility
US 6,673,883 · App. 09/341,476
Polymers containing zwitterionic monomers
Inventor:
Lee Rowan
Patented Case
View Patent ↗
Granted: Jan 6, 2004
Filed: Jul 12, 1999
Inventor
Lee Rowan
Assignee (at issue)
Biocompatibles UK Limited
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.