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Information on legal issues is available in the Law & practice area:

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Patenting issues

International route (JPG)

Your source of information on patenting issues in the news.


Biotechnology has consistently ranked among the ten largest technical fields at the EPO in the last few years, yet the professional and public debate about the patentability of biotechnological inventions continues.

Substantive patent law harmonisation

Set up in 2011 to informally discuss key harmonisation issues, the Tegernsee Group has produced technical, fact-finding studies and consulted users in Japan, the US and Europe on the grace period, 18-month publication, conflicting applications and prior user rights.

Patent classification

Here we look at current issues in patent classification, including efforts to harmonise classification systems and the tagging schemes developed by the EPO to identify technologies that span multiple technical fields.

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