Granted Patent
Utility
US 6,440,689 · App. 09/894,929
Measurement of microbiological activity in an opaque medium
Inventors:
Rodney H. Banks, Nancy L. Casselman, Mita Chattoraj, Ronald V. Davis, Michael Fehr, Sasireka S. Ramesh, David P. Workman
Patented Case
View Patent ↗
Granted: Aug 27, 2002
Filed: Jun 28, 2001
Inventors
Rodney H. Banks
Nancy L. Casselman
Mita Chattoraj
Ronald V. Davis
Michael Fehr
Sasireka S. Ramesh
David P. Workman
Assignee (at issue)
Ondeo Nalco Company
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.