Granted Patent
Utility
US 6,584,470 · App. 09/796,961
Multi-layered semiotic mechanism for answering natural language questions using document retrieval combined with information extraction
Inventor:
Richard Veale
Patented Case
View Patent ↗
Granted: Jun 24, 2003
Filed: Mar 1, 2001
Inventor
Richard Veale
Assignee (at issue)
Intelliseek, 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.