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February 2020

New legal event data from Croatia, Italy, and Poland in INPADOCDB and INPAFAMDB

January 2020

Changes to Derwent WPI Update numbering and the total number of annual DWPI updates

December 2019

Derwent World Patents Index: Manual Code revision 2020

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PATDPA will no longer be updated

17. June 2011

The patent database PATDPA will no longer be updated from week 25/2011 onwards.
PATDPA is a patent database covering all patent publications related to Germany (DE-, EP- and PCT-publications) which has been operated in close cooperation of FIZ Karlsruhe and the German Patent and Trademark Office (GPTO) for more than 20 years.
The GPTO will stop production of the data format required for PATDPA in June 2011. Last update of the database was for week 24/2011 on June 16, 2011.

PATDPA will be kept as a closed database for the time being.

For alternative patent databases see: