Granted Patent
Utility
US 6,594,576 · App. 09/898,682
Using location data to determine traffic information
Inventors:
Rodric C. Fan, Xinnong Yang, James D. Fay
Patented Case
View Patent ↗
Granted: Jul 15, 2003
Filed: Jul 3, 2001
Inventors
Rodric C. Fan
Xinnong Yang
James D. Fay
Assignee (at issue)
At Road, 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.