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URL: Location: HomePatentsPatent informationIPCFAQ

FAQ

Questions

   

Answers

Is there an IPC website?

Yes: http://www.wipo.int/classifications/ipc/en/

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Who is responsible for the IPC?

The World Intellectual Property Organization (WIPO) based in Geneva is responsible for the IPC and the IPC reform. In this area, WIPO works closely with the EPO, the USPTO and the JPO, as well as other patent offices around the world.

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What were the main features of the IPC reform in 2006?

The key features of the post-2006 IPC are ... more

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When did the IPC reform enter into force?

1 January 2006.

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What were the changes for the patent information end-user?

Almost every patent information product was affected, including ... more

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Why is the IPC divided into core and advanced levels?

Experience with the IPC showed that for some users ... more

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What happens when the advanced level is revised? Do users have to update their search profiles every three months?

WIPO publishes all IPC changes three months in advance ... more

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The reformed IPC has two levels, core and advanced. Which one is best for searching?

For international searches, ie searches aimed at retrieving prior art ... more

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Does the classification philosophy ever change?

In the past, classifiers focussed on the claims of a patent document ... more

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How was old "backfile" data handled?

As of 1 January 2006, all intellectual property offices are obliged ... more

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If a document was published under an earlier IPC edition (1 to 7) and there was no change in the scheme, will its new, reformed IPC be identical to its old IPC?

Not necessarily. The reformed IPC classifications for documents published ... more

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Whenever the IPC is revised, how can users be sure that all documents have been reclassified in time in accordance with the new classification scheme?

Changes to the classification scheme are not introduced until all documents have been reclassified.

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Have the old IPC1 to 7 classifications be overwritten by IPC8 classifications?

The “old” IPC (editions 1-7) classifications allocated to documents will be kept, in a separate field in most databases, so that users can search them independently of the “new” IPC symbols.

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Can users still use ECLA, or will it be replaced by the reformed IPC?

ECLA continues to exist as the EPO’s internal classification system. Although concordance between IPC and ECLA is constantly improving, ECLA will remain an independent classification system in most technical fields.

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What are "classification definitions"?

The titles of IPC groups sometimes leave room for interpretation ... more

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How do documents classified according to the advanced level get their corresponding core level code?

All documents (including the ones classified in the advanced level) must have a core level classification. However these is not given by the offices ... more

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When a document has an advanced level classification, does the automatically generated Core level IPC appear on printed documents as well?

It does not appear on the printed documents. It is only present in the MCD and on the EPO's data exchange products.

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Patent offices have different views and practices on IPC classification. How are these minimised?

The IPC definitions make the intended coverage of IPC classification places is much clearer and leave less room for interpretation ... more

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How does the family propagation of IPC classifications work?

The IPC provides a single classification that can be used for searching the whole document collection. This requires reclassification of documents in two cases: ... more

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Is there a contact point for further questions?

Further information can be found on the WIPO website.

If you have any questions about the IPC, especially if are concerned about how to apply it in the products you use, then please write to us at infowien@epo.org.

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