Court rules on burden of proof in patented process case

Managing IP is part of Legal Benchmarking Limited, 1-2 Paris Gardens, London, SE1 8ND

Copyright © Legal Benchmarking Limited and its affiliated companies 2026

Accessibility | Terms of Use | Privacy Policy | Modern Slavery Statement

Court rules on burden of proof in patented process case

burden-min-final.jpg

The reversal of burden of proof in civil proceedings concerning the enforcement of rights for patents for processes is a provision that exists in the laws of many countries, including Greece.

The same provision is included in Article 34 of TRIPS. This gives judicial authorities the power to order the defendants to prove that their process is not infringing.

The defendant's burden of proof is laid down in Article 17 Paragraph 6 of Law 1733/87, which provides that "if the invention relates to a process for the manufacture of a product, each product of the same nature is presumed to have been manufactured according to the protected process."

Article 34 of TRIPS imposes an additional condition for the infringement presumption to apply. In order for this to apply, the product obtained by the patented process must be new.

The issue of which conditions should apply for the reversal of burden of proof to be ordered was examined in a recent judgment from the Athens Single Member Court of First Instance hearing a preliminary injunction application based on a patent with process claims. In these proceedings, the patentee was relying on the reversal of burden of proof as regards infringement of the patented process. The defendant objected, arguing that the reversal of burden of proof cannot apply under the circumstances, since the product obtained under the process was not new. The objection was based on Article 34.1a of TRIPS and the defendant argued that these provisions of TRIPS overrule the broader provisions of national law.

The court rejected the objection and found the national law provisions applicable. In its judgment it referred to CJEU judgment C-414/11 and ruled that, in view of this judgment, TRIPS does not have a direct effect on the member states, given that the rules of the TRIPS Agreement fall within the meaning of "commercial aspects of intellectual property" and by extension, the "common commercial policy" and fall within the exclusive competence of the EU, based on the provisions of TFEU Articles 3.1(e) and 207.1.

kilimiris-constantinos.jpg

Constantinos Kilimiris


Patrinos & Kilimiris

7, Hatziyianni Mexi Str.

GR-11528 Athens

Greece

Tel: +30210 7222906, 7222050

Fax: +30210 7222889

info@patrinoskilimiris.com

www.patrinoskilimiris.com

more from across site and SHARED ros bottom lb

More from across our site

Personality rights are among several measures the government must take to maximise the potential of the music licensing market, say lawyers
Pascal Faure, director general of INPI, explains why keeping a cool head is key, and discusses plans to leverage IP assets to secure funding
Lawyers at Carpmaels & Ransford explain how the healthcare sector has not simply participated in the UPC’s early years, but actively shaped it
The firm has hired former in-house counsel Quintin Cassady to lead the launch of the new office
The combined firm has strong IP credentials across the US, Middle East, UK and Europe, despite Taylor Wessing’s German and French practices not joining
Priya Nagpal, who this month became the firm’s eighth IP partner, says its cross-practice expertise in areas closely linked to IP was a key draw
Harm van der Heijden is to join Ankar as head of patent innovation after 17 years in private practice
Alabama attorney Miya Aladebumoye has launched a new firm built on ‘big law’ experience and a personal touch approach
A UKIPO campaign aimed at combating fakes in the pre-loved fashion market and registration of the first Portuguese craft and industrial geographical indication were also among the top talking points
Chris Adams, Managing IP’s research lead, joins us to explain what practitioners need to know ahead of our first rankings release of 2026
Gift this article