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Constantinos Kilimiris



- MSc in Environmental Studies, Université Libre de Bruxelles, Brussels, Belgium

- LLB Degree in Law, University of Athens, Athens, Greece


- Admitted to practice before the Supreme Court and the Council of State


Constantinos has more than 27 years’ experience in all areas of Intellectual Property Law, primarily focusing on Patents.

Constantinos’ patents practice has involved cases for sectors ranging from consumer goods to chemicals, with most of his experience acquired in the pharmaceutical field and relevant dispute resolution. He has been engaged in many high value patent litigation matters for large pharmaceutical clients before the Greek courts and the Court of Justice of the European Union involving some of the world's best-selling pharmaceutical products.


He is recognised by all of the major legal directories as a leader in both the Intellectual Property and Life Sciences fields in Greece. He heads the firm's Patent practice.

Constantinos is a member of the Athens Bar Association, the Executive Committee of AIPPI, the Executive Committee of FICPI, EPLAW and UNION. He speaks Greek, English, French, German and Spanish.


Recommended for:

  • Patents – IAM Patent 1000 (2013-2020)

  • Patents – IAM Global Leaders (2020)

  • Intellectual Property –  The Legal 500 (2008-2020)

  • Intellectual Property –  Best Lawyers® (2010-2020)

  • Patents – Who’s Who Legal (2014-2019)

  • Life Sciences – Who’s Who Legal (2012-2020)



“Spearheading the group is “knowledgeable and experienced strategist Constantinos Kilimiris. He has a comprehensive understanding of how courts operate and tailors his advice to suit”. He often teams up with Manolis Metaxakis on life sciences matters. The two form a potent strike force and recently acted in infringement and preliminary injunction proceedings for Novartis and Atnahs Pharma UK. “It is always a fantastic experience working either with or against them, and you know your matters are in capablehands.” IAM Patent 1000 -2020


“Constantinos Kilimiris is a leading name for patents with expertise in the pharmaceuticals, consumer goods and chemical sectors.” THE LEGAL500 2020

Kilimiris is incredibly smart when it comes to strategy and brilliant at thinking outside the box”. IAM Patent 1000 -2019

“The battle-hardened Constantinos Kilimiris is among the most respected pharmaceutical litigators in Greece. When scrutinising case materials, he lets nothing – no matter how minor – go unconsidered.” IAM Patent 1000 -2018

“Constantinos is incredible – he is a hardworking guy who gets completely involved in all the issues you throw at him.” IAM Patent 1000 – 2016


The superlative Constantinos Kilimiris “is a pleasure to work with. In-house counsels are very satisfied with his timely advice and extensive research. He is very informative and always willing to reach out and knowledge share. As a result, he can be recommended without hesitation. Additionally, he excels at smoothing the transition when entities choose to transfer their portfolio to the firm” IAM Patent 1000 – 2014


Biotech expert Constantinos Kilimiris is applauded for this “extremely good understanding of technical subject matter and industry sectors, as well as an ability to navigate smoothly through the Greek court system” IAM patent 1000 - 2013

Contact Constantinos

Contact me by phone, email or via my Linkedin page

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