Granted Patent
Utility
US 6,071,868 · App. 09/227,257
Photoresist stripping composition
Inventors:
Jin Seock KIM, Yang-Sun Kim, Seog-Young Lim, Dong-Uk Choi, Koog-Lok Lee
Patented Case
View Patent ↗
Granted: Jun 6, 2000
Filed: Jan 8, 1999
Inventors
Jin Seock KIM
Yang-Sun Kim
Seog-Young Lim
Dong-Uk Choi
Koog-Lok Lee
Assignee (at issue)
SAMSUNG DISPLAY 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.