Granted Patent
Utility
US 6,819,797 · App. 09/493,879
Method and apparatus for classifying and querying temporal and spatial information in video
Inventors:
John R. Smith, Chung-Sheng Li
Patented Case
View Patent ↗
Granted: Nov 16, 2004
Filed: Jan 28, 2000
Inventors
John R. Smith
Chung-Sheng Li
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.