Granted Patent
Utility
US 5,840,171 · App. 08/464,715
Electrochemical reactions
Inventors:
Brian Jeffrey Birch, Nicholas Andrew Morris
Patented Case
View Patent ↗
Granted: Nov 24, 1998
Filed: Nov 3, 1995
Inventors
Brian Jeffrey Birch
Nicholas Andrew Morris
Assignee (at issue)
Unilever Patent Holdings 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.