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IPC: Enhancements and Classifications for Efficient Patent Document Retrieval

This document discusses the objectives and reforms of the International Patent Classification (IPC) system, focusing on its function as an effective search tool for patent documents. It addresses the need for structural changes to improve the IPC in an electronic environment, highlighting issues related to classification methods, document storage, and the efficient retrieval of information. The paper proposes a multi-dimensional approach and emphasizes the importance of differentiating between documents and the concepts describing their contents for better accessibility and utility in intellectual property offices.

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IPC: Enhancements and Classifications for Efficient Patent Document Retrieval

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  1. IPC – A TOOL FOR CLASSIFYING PATENT DOCUMENTS RATHER THAN CONCEPTS?Pierre Buffet IPC Workshop Geneva, February 8 and 9, 2010

  2. IPC - some issues • IPC objectives • Classification objectives • IPC reform

  3. IPC objectives 6. The Classification […] has as its primary purpose the establishment of an effective search tool for the retrieval of patent documents by intellectual property offices and other users […] 7. The Classification, furthermore, has the important purposes of serving as: (a) an instrument for the orderly arrangement of patent documents in order to facilitate access to the […] information contained therein; (b) a basis for selective dissemination of information […]; (c) a basis for investigating the state of the art […]; (d) a basis for the preparation of industrial property statistics […] [IPC Guide, Version 2009]

  4. Classification objectives • Arrangement of objects • in a one dimension space (shelves, shoe boxes, …) • To Facilitate access to the objects or • To dispatch these objects (e.g. to examiners) • Other use: (simple) description of contents - one viewpoint

  5. IPC reform 11. […] Changes to the structure of the Classification and to methods of its revision and application were needed in order to ensure its efficient and effective use in the electronic environment. • Binded to classification approach • One dimension space (shelves) • No real use of boolean capabilities • Very expensive update procedure • Frequent updates • Need to reclassify

  6. IPC reformClassification approach • Adapted to arrange collections • Limited for describing contents • Need to differentiate: • Documents • Concepts describing the contents • Concepts can be arranged in a different classification • The example of Japanese F-terms

  7. IPC reformexample of F-terms • Multiple viewpoint approach • Adapted to boolean logic • See for instance: IPC Workshop, Geneva, Feb. 4-5, 2008 Japanese Classification System (FI, F-terms) and Quality of Reclassification Susumu IWASAKI, JPO

  8. Concept of F-term -Multiple Technological Viewpoints- (2) AA components AA04 ··Calcium oxides 4G031 AA04 15

  9. Concept of F-term -Multiple Technological Viewpoints- (3) AA components BA24 ··Low heat expansion 4G031 BA Functions and Uses AA04 and BA24 16

  10. Concept of F-term -Multiple Technological Viewpoints- (4) AA components Refine the search effectively! CA05 ·Granularity 4G031 BA Functions and Uses CA Structures AA04 and BA24 and CA05 17

  11. IPC reform 13. The following major changes were introduced […]: (a) the Classification was divided into a core and an advanced level, in order to better satisfy the needs of different categories of users; • Convenient for storing documents according to size of collections • Complex for searching

  12. IPC reform 13. The following major changes were introduced […]: (c) when the Classification is revised, patent documents are reclassified according to the amendments to the core and advanced levels; • Very costly as changes are very frequent

  13. IPC reformConclusion • Look for stable solutions • to reduce costs • Differentiate the classification of • Documents (storing, dispatching) • Concepts (indexing) • Mr Iwasaki’s conclusion: Future: Super IPC (multi-dimensional viewpoint) ??

  14. Overall Conclusion • Recognize the role and constraints of each player • Reduce costs • Enhance cross-linking through: • Exchange of viewpoints & expertise (WIPO, IPOs, PDG, PATCOM) • Standards (WIPO – SCIT – Standards & Documentation Working Group)

  15. Thank You www.questel.com Email: pbuffet@questel.com

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