Granted Patent
Utility
US 5,763,352 · App. 08/493,501
Catalyst composition for the purification of the exhaust of diesel vehicles, catalyst using the same and preparing methods thereof
Inventors:
Hyun-Jong Jung, Bon-Chul Ku, Yong Woo Kim, Yong-Taek Choi, Ki-Ho Lee, Kyeong-Cheol Min, Jae-Woong Um
Patented Case
View Patent ↗
Granted: Jun 9, 1998
Filed: Jun 22, 1995
Inventors
Hyun-Jong Jung
Bon-Chul Ku
Yong Woo Kim
Yong-Taek Choi
Ki-Ho Lee
Kyeong-Cheol Min
Jae-Woong Um
Assignee (at issue)
Yukong Limited
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.