Granted Patent
Utility
US 6,447,657 · App. 09/729,296
Biosensor
Inventors:
Raghbir S. Bhullar, Christopher D. Wilsey, Brian S. Hill
Patented Case
View Patent ↗
Granted: Sep 10, 2002
Filed: Dec 4, 2000
Inventors
Raghbir S. Bhullar
Christopher D. Wilsey
Brian S. Hill
Assignee (at issue)
Roche Diagnostics GMBH
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.