provided by
provided by FIZ Karlsruhe

SEMANTiCS 2019 in Karlsruhe


SEMANTiCS is the leading European conference on Semantic Technologies and AI and is held for the first time in Karlsruhe, Germany. One of the organizers is FIZ Karlsruhe whose Vice President Information Service Engineering,  Prof. Sack, is Conference Chair and a member of the conference’s Permanent Advisory Board.

New on STN

May 2019

Second 2019 update to Emtree(TM) now available on STN(R)

April 2019

New legal status codes for US patent applications and granted patents in INPADOC

April 2019

Updates in database World Surface Coatings Abstracts (file WSCA) have resumed

Meet us at

CIPAC - China Intellectual Property Annual Conference of China 2019, 03.-09.Sep, HangZhou
Bund Deutscher Patentanwälte - Herbstseminar, 10.-11.Okt, Dresden
EPOPIC 2019 - EPO Patent Information Conference, 29.-30. Oct, Bukarest

STN User Meetings

Paris, 10.09.2019
Toulouse, 12.09.2019
Lyon, 13.09.2019

This website uses cookies. Matomo is used for the usage analysis. By continuing to use the website, you agree to this. If you object to the usage analysis or would like to learn more about cookies, please click on the privacy policy. Close

Rolled-up IPC Core Codes removed from Patent Databases on STN

14. December 2011

Rolled-up IPC core codes have now been removed from patent databases on STN to deliver more consistent and streamlined IPC content, according to the simplification of the IPC being in force since January 2011.

In 2006, the IPC reform brought about two levels of the IPC (advanced and core level IPC) and rolled-up core codes were introduced for each advanced level IPC code. This practice simplified searching at the different levels of the IPC across the various patent authorities. In January 2011 the simplification of the IPC came into force which reverted to a one level IPC and abandoned the old core level IPC. As a consequence of these IPC changes, the European Patent Office stopped rolling up core codes and removed all rolled-up core codes from the INPADOC data collection.

Rolled-up IPC core codes have now been removed from the following databases on STN:

  • CA/CAplus family of databases

In the DWPI databases the rolled-up core codes have been removed from the set of current IPCs only.