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

Sim & San, which secured the $16m victory for their client, previously led Communications Components Antenna to a $26m damages win in 2024
IP litigator Ruth Hoy has led the London office since 2022
Emotional Perception AI is seeking more than £200,000 after the UK Supreme Court backed its appeal
Lawyers at Pinsent Masons discuss why the advent of ‘AI-free’ might be a crucial moment for brands seeking to protect their identity
Newly independent King & Wood has established offices in North America, while Mallesons has entered a ‘new era’ with a 1,200-lawyer firm across Australia and Singapore
Ryan Dykal and John Wittenzellner of Boies Schiller Flexner tell Managing IP what’s driving the firm’s patent litigation expansion
News of Dolby suing Snap over AV1 and HEVC patents and SCOTUS offering guidance on the liability of internet service providers were also among the top talking points
Arrival of Caitlin Heard will bolster the soon-to-be-created Ashurst Perkins Coie’s IP presence in the capital
AI, cybersecurity and data practice group will provide clients with legal guidance around AI alongside a 'deep technical foundation’ in IP
Lawyers at Vondst and Biopatents say a ruling concerning the protected status of trade secrets could see the UPC flooded with requests to prevent access to confidential information
Gift this article