Last updated 11/02/2026CPC classification data: Weekly update. Weekly and monthly download files for the current year. For years prior to the current year, the files are grouped into a single file per year.
| Category | Format | Specification | Start date | Last date |
|---|---|---|---|---|
| CPC |
|
ST36 / es-patent-document-v1-2-1.dtd | 05/01/2025 | 08/02/2026 |
For the current year, click on the corresponding date in the calendar (only highlighted days) to get the file with the publication data for that week; or click on the month to get a single file with the publication data for that month. For years prior to the current year, scroll down and click on the file name corresponding to the year to get a single file with the data of all the publications for that year.
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| 16 | 17 | 18 | 19 | 20 | 21 | 22 |
| 23 | 24 | 25 | 26 | 27 | 28 | |
| L | Ma | Mi | J | V | S | D |
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| 1 | 2 | 3 | 4 | |||
| 5 | 6 | 7 | 8 | 9 | 10 | 11 |
| 12 | 13 | 14 | 15 | 16 | 17 | 18 |
| 19 | 20 | 21 | 22 | 23 | 24 | 25 |
| 26 | 27 | 28 | 29 | 30 | 31 | |
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