
Spearheaded by the Athens-based duo of Constantinos Kilimiris and Maria Kilimiris, Law Offices Patrinos & Kilimiris specialises in overseeing complex patent prosecution combined with trade mark infringement claims. The team is especially active in the pharma, sports, and entertainment fields, with both department heads being specialists in the areas of designs, copyright, and high-value patent litigation. Electra Kilimiris has experience in soft IP matters, whilst both Manolis Metaxakis and Youli Angelou are highlighted as integral members of the ‘highly professional’ outfit.
Testimonials
Collated independently by Legal 500 research team.
‘We have been working with Patrinos & Kilimiris for a great number of years and this practice combines strong legal expertise, with a deep understanding of IP issues and a track record of successful outcomes. We can only praise their professionalism, knowledge and dedication, which makes them one of the top firms in Greece in the field of IP.’
‘The individuals at Patrinos & Kilimiris, including (but not limited to) Konstantinos Kilimiris, Electra Kilimiri and Maria Kilimiri, stand out for their expertise in their respective fields of practice and their commitment to excellent client service and innovative thinking, with strong communication skills and emphasis on providing excellent service to their clients.’
‘Excellent team that works well together and with the client. Constantinos Kilimiris is the patent litigation tactical & strategy expert in his field.’
‘Our experience with the firm is not new and we have constantly been in contact with the team, Electra and Maria Kilimiris, Manolis Metaxakins, and others in several cases where they have evidenced how strategic, sharp and very concrete in their opinions. Additionally, they are very sensitive to diversity.’
‘Our work is basically concentrated with Electra who is a key member of the firm not only from a professional point of view but also very active in her participation in different IP events. Her advantage of speaking 5 different languages and her sympathy is the perfect match with her intelligence and very strong advice transmitting security to clients.’
‘Very responsive, highly professional, very collegial.’
‘Maria Kilimiri and Electra Kilimiri - both very responsive, highly professional, very collegial.’
Key clients
- Bristol-Myers Squibb Company
- Novartis AG
- Pfizer, Inc.
- Louis Vuitton
- Portman Lights Sp. z o.o.
- Astra Zeneca AB
- Gilead Sciences LLC
- Amgen Inc.
- Merck Sharp & Dohme Corporation
- Allergan Inc.
- Yoplait Marques
- Christian Louboutin
- Solvay S.A.
- The Procter & Gamble Co.
- Hyundai Motor Co.
- KIA Motor Corp.
- HONDA Motor Co, Ltd.
- Exxon Mobil Corporation
- The Gillette Company
- Total SA
- IOC (International Olympic Committee)
- Metro Goldwyn Myer Studios Inc.
- Max Mara Fashion Group Srl
- Conde Nast New Markets Europe/Africa, Inc.
- Oracle America Inc.
- Imperial Tobacco Limited
- JTI (Japan Tobacco Industry Inc)
- Tiktok Information Technologies UK Limited
- 7 Eleven Inc.
- General Electric Technical Services Company, Inc.
- Kerzner International Ltd.
- Sugarfree SP z.oo
- Holland & Barrrett Retail Ltd.
- Tupperware Brands Corporation
- Chanel
- Yahoo, Inc.
- Pineapple Holdings Limited
Work highlights
- Representing the Hellenic Republic before the EUIPO in a cancellation action against a trade mark registration in the name of an entity fully owned and controlled by the Turkish Republic for the trade mark “Turkaegean”.
- Representing Novartis in preliminary injunction proceedings and proceedings on the merits against Greek and foreign generic companies attempting to market generic versions of Novartis’ medicament Gilenya® for the treatment of MS.
- Providing legal advice and support to the Chemours company in proceedings related to a seizure of 15.6 tons of suspected unauthorized refrigerants infringing valid patents or deemed illegal in the European Union, carried out by the Greek authorities in collaboration with the European Anti-Fraud Office (OLAF).
Lawyers

Practice head
The lawyer(s) leading their teams.
Constantinos Kilimiris, Maria Kilimiri