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N Sweat
Patent Search
     (2)
          7
Basics of Patent Search
Part 1
• Search Query
  (Boolean Operators, Proximity Searching)
• Field Description in a Patent

Part 2
• Strategy to Patent Search
• Patent Search Databases
Should we use keywords or
  classification to search?

   The use of BOTH keywords and
classification will be the best way to
        attain relevant results.
Overview
• Problems with keyword search only
  – How to Overcome
• Problems with classification search only
  – How to Overcome
• 7 Highly Effectives Steps to Patent Search
Problems with the use of
              Keywords only
           Problems                        Examples
Differences in American and
                                Tire (American) vs Tyre (British)
British English
Poor translation from foreign   Accuracy of machine translation is
patents                         at most 60-70%
                                Method, Mechanism, Means,
Too many synonyms               Process
                                have similar meanings
                                E.g. Mousetrap = Rodent
Novel terminologies
                                Extermination Device
Different ways of spelling      Sony Electronics or Sony
company names                   Corporation
Ways to overcome
• Thesaurus
• Technical Dictionary
• Technical Thesaurus
  – INSPEC (Electrical Engineering Terminologies)
  – MESH (medical subjects)
Problems with the use of
            Classification only
          Problems                          Explanation
                                   Under ECLA, the jargon for Pencil
Complex naming of Classification
                                   is Writing Implements.
                                   For rapidly developing
                                   technologies, an update of the IPC
Stagnant Classification
                                   classification every 5 years maybe
                                   inadequate.
                                   Some databases may not update
Obsolete Classification
                                   their old classification even
                                   Lack of classification in Canadian
Minimal Classification
                                   Patents
Ways to overcome
• Use the free databases that are available
  online (as shown in the next slide)
• Compare the classification systems in different
  databases to reach a consensus
Important Classification

    Classification Systems                         Website
             EPO
                                     http://v3.espacenet.com/eclasrch?cla
     European Classification
                                     ssification=ecla&locale=en_EP?
            (ECLA)
             USPTO                   http://www.uspto.gov/web/patents/c
    U.S. Patent Classification       lassification/
             (USPC)
              WIPO                  http://www.wipo.int/classifications/i
International Patent Classification pc/en/
               (IPC)
7 Highly Effective Steps to
      Patent Search
                Read the references
         Supplement with other classifications


           Find relevant classifications

          Examine retrieved documents


             Find top classification


         Keyword/Synonyms Search


 Write a concise description of your invention
7 Highly Effective Steps to
              Patent Search
1. Write a concise description of your invention,
   listing all the keywords and possible
   synonyms
2. Perform a keyword search with the full text
   (as the essence of the patents is buried in the
   text, not just the abstract or title)
3. In PatSnap, click          and find the top
   UPC and IPC classifications
7 Highly Effective Steps to
              Patent Search
4. Click on the top classification groups and
    examine the retrieved documents.
5. Repeat the step with another classification if
    the classification selected in Step 4 is not
    relevant.
6. Supplement this with a search using ECLA.
7. Review the references that are at the front
    page of the prior art patents.
About IP guide for Start-ups

Visit www.facebook.com/patsnap for your weekly dose of Intellectual Property guide for early ventures, written by
PatSnap’s PaTENt minutes’ team.

Rev up your IP knowledge in just 10 minutes. Each Patent 10 minutes guide consists of 10 slides.

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No sweat patent search 2

  • 2. Basics of Patent Search Part 1 • Search Query (Boolean Operators, Proximity Searching) • Field Description in a Patent Part 2 • Strategy to Patent Search • Patent Search Databases
  • 3. Should we use keywords or classification to search? The use of BOTH keywords and classification will be the best way to attain relevant results.
  • 4. Overview • Problems with keyword search only – How to Overcome • Problems with classification search only – How to Overcome • 7 Highly Effectives Steps to Patent Search
  • 5. Problems with the use of Keywords only Problems Examples Differences in American and Tire (American) vs Tyre (British) British English Poor translation from foreign Accuracy of machine translation is patents at most 60-70% Method, Mechanism, Means, Too many synonyms Process have similar meanings E.g. Mousetrap = Rodent Novel terminologies Extermination Device Different ways of spelling Sony Electronics or Sony company names Corporation
  • 6. Ways to overcome • Thesaurus • Technical Dictionary • Technical Thesaurus – INSPEC (Electrical Engineering Terminologies) – MESH (medical subjects)
  • 7. Problems with the use of Classification only Problems Explanation Under ECLA, the jargon for Pencil Complex naming of Classification is Writing Implements. For rapidly developing technologies, an update of the IPC Stagnant Classification classification every 5 years maybe inadequate. Some databases may not update Obsolete Classification their old classification even Lack of classification in Canadian Minimal Classification Patents
  • 8. Ways to overcome • Use the free databases that are available online (as shown in the next slide) • Compare the classification systems in different databases to reach a consensus
  • 9. Important Classification Classification Systems Website EPO http://v3.espacenet.com/eclasrch?cla European Classification ssification=ecla&locale=en_EP? (ECLA) USPTO http://www.uspto.gov/web/patents/c U.S. Patent Classification lassification/ (USPC) WIPO http://www.wipo.int/classifications/i International Patent Classification pc/en/ (IPC)
  • 10. 7 Highly Effective Steps to Patent Search Read the references Supplement with other classifications Find relevant classifications Examine retrieved documents Find top classification Keyword/Synonyms Search Write a concise description of your invention
  • 11. 7 Highly Effective Steps to Patent Search 1. Write a concise description of your invention, listing all the keywords and possible synonyms 2. Perform a keyword search with the full text (as the essence of the patents is buried in the text, not just the abstract or title) 3. In PatSnap, click and find the top UPC and IPC classifications
  • 12. 7 Highly Effective Steps to Patent Search 4. Click on the top classification groups and examine the retrieved documents. 5. Repeat the step with another classification if the classification selected in Step 4 is not relevant. 6. Supplement this with a search using ECLA. 7. Review the references that are at the front page of the prior art patents.
  • 13. About IP guide for Start-ups Visit www.facebook.com/patsnap for your weekly dose of Intellectual Property guide for early ventures, written by PatSnap’s PaTENt minutes’ team. Rev up your IP knowledge in just 10 minutes. Each Patent 10 minutes guide consists of 10 slides.