Granted Patent
Utility
US 4,592,867 · App. 06/662,683
Synthesis method for reductant precursor
Inventors:
Terry T. Yu, Mei-Rong Yen
Patented Case
View Patent ↗
Granted: Jun 3, 1986
Filed: Oct 19, 1984
Inventors
Terry T. Yu
Mei-Rong Yen
Assignee (at issue)
Energy Conversion Devices, Inc.
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.