Granted Patent
Utility
US 5,364,445 · App. 08/102,153
Recovery method of rhodium
Inventors:
Masaharu Sakamoto, Tomoyuki Mori, Akio Tsuboi
Patented Case
View Patent ↗
Granted: Nov 15, 1994
Filed: Aug 4, 1993
Inventors
Masaharu Sakamoto
Tomoyuki Mori
Akio Tsuboi
Assignees (at issue)
N.E. CHEMCAT CORPORATION
Mitsubishi Kasei Corporation
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.