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

Arrival of Laura Alonso, alongside a team of 11, will bring ‘significant value’ to ECIJA clients, says CEO
In the first of a two-part article, lawyers at Spruson & Ferguson and Marshall Gerstein provide an overview of China’s system for appealing against patent invalidation decisions
Lawyers and corporate leaders at INTA’s Business of M&A conference in New York discussed how cross-practice collaboration and early in-house involvement can help deals
Lily Li, partner at Morrison Foerster, shares how her litigation team helped secure victory at the ITC in a patent infringement case
Top talking points also included news of an appellate ruling concerning ‘Pisco’ and Indian drugmakers gearing up to launch generic versions of Ozempic as Novo Nordisk’s patent expires
The government’s keenly awaited view on AI and copyright has positive themes but leaves rights owners wanting, says Rebecca Newman at Addleshaw Goddard
While IP Australia’s updated manual could be favourable to computer-implemented inventions, stakeholders would like to see whether a consistent and reliable standard is followed during actual examination
UKIPO will remain a competitive option as long as efficient service continues
A future opt-out has not been ruled out, but practitioners warn that the UK could fall behind in the AI race
US patent lawyers say they are increasingly advising clients on China strategies as corporations seek to gain leverage in enforcement, licensing, and supply chain management
Gift this article