Granted Patent
Utility
US 5,860,059 · App. 08/810,778
Transaction system based on a bidirectional speech channel by status graph building and problem detection for a human user
Inventors:
Harald Aust, Holger W. Brode, Olaf Schroer, Jens Friedemann Marschner, Erique Marti Del Olmo, Ralf Mehlan
Patented Case
View Patent ↗
Granted: Jan 12, 1999
Filed: Mar 5, 1997
Inventors
Harald Aust
Holger W. Brode
Olaf Schroer
Jens Friedemann Marschner
Erique Marti Del Olmo
Ralf Mehlan
Assignee (at issue)
U.S. Philips 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.