Granted Patent
Utility
US 6,765,504 · App. 09/889,555
Chinese language pinyin input method and device by numeric key pad
Inventor:
Yen-I OUYANG
Patented Case
View Patent ↗
Granted: Jul 20, 2004
Filed: Aug 21, 2001
Inventor
Yen-I OUYANG
Assignee (at issue)
SUMITOMO ELECTRIC INDUSTRIES, 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.