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PDF, PCT Yearly Review - WIPO

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39<br />

B.4 Languages of Filing and Publication<br />

Figure B.4 presents the distribution of <strong>PCT</strong> applications according to language of filing and language of<br />

publication. A <strong>PCT</strong> application may be filed in any language accepted by the relevant RO, but must be<br />

published in one of the 10 official publication languages.<br />

Figure B.4: Distribution of filing and publication languages<br />

Filings in 2010 Filings in 2009 Publications in 2010<br />

English<br />

87,385<br />

Japanese<br />

German<br />

Chinese<br />

Korean<br />

29,815<br />

16,852<br />

11,425<br />

7,353<br />

Languages<br />

French<br />

Others<br />

Spanish<br />

Russian<br />

5,504<br />

3,163<br />

1,730<br />

728<br />

Portuguese<br />

Arabic<br />

344<br />

1<br />

Source: <strong>WIPO</strong> Statistics Database<br />

> English was the most frequently used language of filing and publication in 2010. In both cases, English<br />

was used more frequently than all other languages combined.<br />

> The languages of filing with the most increased use in 2010 compared to 2009 were Portuguese<br />

(+100%), Chinese (+58%) and Korean (+27%).

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