Granted Patent
Utility
US 6,567,139 · App. 09/915,696
Color filter and manufacturing method thereof
Inventor:
Sheng-Kai Huang
Patented Case
View Patent ↗
Granted: May 20, 2003
Filed: Jul 26, 2001
Inventor
Sheng-Kai Huang
Assignee (at issue)
Chi Mei Optoelectronics Corp.
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.