Granted Patent
Utility
US 6,393,136 · App. 09/225,476
Method and apparatus for determining eye contact
Inventors:
Arnon Amir, Myron D. Flickner, David Bruce Koons, Carlos Hitoshi Morimoto, Shumin Zhai
Patented Case
View Patent ↗
Granted: May 21, 2002
Filed: Jan 4, 1999
Inventors
Arnon Amir
Myron D. Flickner
David Bruce Koons
Carlos Hitoshi Morimoto
Shumin Zhai
Assignee (at issue)
International Business Machines Corporation
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.