Granted Patent
Utility
US 6,147,266 · App. 09/220,662
Method for producing acetylene alcohol compounds using continuous process
Inventors:
Si-Joon Lee, Chang Kuk Kim, Young-Gyun JUNG, Young Sun Kang, Taik Keun KIM
Patented Case
View Patent ↗
Granted: Nov 14, 2000
Filed: Dec 24, 1998
Inventors
Si-Joon Lee
Chang Kuk Kim
Young-Gyun JUNG
Young Sun Kang
Taik Keun KIM
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.