Granted Patent
Utility
US 6,598,016 · App. 09/175,657
System for using speech recognition with map data
Inventors:
Walter B. Zavoli, Hongche Liu
Patented Case
View Patent ↗
Granted: Jul 22, 2003
Filed: Oct 20, 1998
Inventors
Walter B. Zavoli
Hongche Liu
Assignee (at issue)
Tele Atlas North America, 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.