Granted Patent
Utility
US 6,721,652 · App. 10/301,994
Implementing geo-fencing on mobile devices
Inventor:
Douglas R. Sanqunetti
Patented Case
View Patent ↗
Granted: Apr 13, 2004
Filed: Nov 22, 2002
Inventor
Douglas R. Sanqunetti
Assignee (at issue)
Electronics Data Systems 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.