Granted Patent
Utility
US 5,570,698 · App. 08/459,148
System for monitoring eyes for detecting sleep behavior
Inventors:
Cheng-Chung Liang, Ming Fang, Ajit Singh
Patented Case
View Patent ↗
Granted: Nov 5, 1996
Filed: Jun 2, 1995
Inventors
Cheng-Chung Liang
Ming Fang
Ajit Singh
Assignee (at issue)
Siemens Corporate Research, Inc.
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.