Granted Patent
Utility
US 6,635,792 · App. 09/989,624
Process for producing aromatic hydrocarbon compounds and liquefied petroleum gas from hydrocarbon feedstock
Inventors:
Sun Choi, Seung Hoon Oh, Yong Seung Kim, Beung-Soo Lim, Kyeong Hak Seong
Patented Case
View Patent ↗
Granted: Oct 21, 2003
Filed: Nov 20, 2001
Inventors
Sun Choi
Seung Hoon Oh
Yong Seung Kim
Beung-Soo Lim
Kyeong Hak Seong
Assignee (at issue)
SK HOLDINGS CO., LTD.
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.