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Canadian application, no grantCanada

Method and system for similarity search and clustering

CA 2470899 A1 · Owner: Endeca Technologies, Inc. · Inventors: Tunkelang, Daniel

CIPO record

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

Provided is a similarity search method that makes use of a localized distance metric. The data includes a collection of items wherein each item is , associated with a set of properties. The distance between two items is defined in terms of the number of items in the collection that are associated with the set of properties common to the two items. A query is generally composed of a set of properties. The distance between a query and an item is defined in terms of the number of items in the collection that are associated with the set of properties common to the query and the item. The properties can be of various types, such as binary, partially ordered or numeric. The distance , …

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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 August 9, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 9, 2022.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 9, 2024.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 9, 2002
GrantedNo grant recorded
Term endedAugust 9, 2022
Patent numberCA 2470899 A1
Classification (IPC)G06F17/30

Timeline

Timeline From CIPO dates

2003200520072009201120132015201720192021Application filedAug 9, 2002Term endedAug 9, 2022

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.