Interactive natural language query processing system and method
CA 2490854 A1 · Owner: Tang, Norman · Inventors: Rucker, Brad L.; Hoffmann, Stephen T.; Tang, Norman
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method for interactive natural language query processing includes receiving a natural language query comprising a plurality of words. The received query is tokenized into individual words. The one or more tokenized words are then collapsed. An intersection of the collapsed words is then determined and one or more results are selected based at least in part on the intersection.
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed July 29, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 29, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 29, 2025.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.