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Home > Obtaining IP Rights > Patents > Classification > F-term revision information

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F-term revision information

November 2018

JPO has a chance of F-term revision once a year. F-terms in some themes are revised actually to catch up the progression of technology.
When F-term is revised, documents analyzed with old F-terms in the past are reanalyzed accordingly. In some cases, the reanalysis requires a few years. It is necessary to use both of old and new F-terms for prior art search during the reanalysis.

To find theme codes where F-term revision is planned in FY2018.(PDF:68KB)

To find theme codes where F-term reclassification is planned and ongoing in FY2018.(PDF:120KB)

[Last updated 14 November 2018]

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