Granted Patent
Utility
US 6,169,789 · App. 09/281,739
Intelligent keyboard system
Inventors:
Sanjay K. Rao, Sunil K. Rao, Raman K. Rao
Patented Case
View Patent ↗
Granted: Jan 2, 2001
Filed: Jun 4, 1999
Inventors
Sanjay K. Rao
Sunil K. Rao
Raman K. Rao
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.