Noted for its ‘strong legal expertise across international and local frameworks’, Law Offices Patrinos & Kilimiris advises on trademark portfolio management and handles trademark and patent litigation, with experience before the General Court and Greek civil courts. Constantinos Kilimiris co‑heads the team, focusing on patent disputes for pharmaceutical clients, while Maria Kilimiris also co-leads the team, managing a broad caseload spanning licensing agreements and trademark invalidation proceedings. Electra Kilimiris and Manolis Metaxakis are praised for their ’very clear and helpful’ approach, and Youli Angelou and Christos Xagoraris are also notable for their work in trademark prosecution and litigation.
Legal 500 Editorial commentary

Testimonials

Collated independently by Legal 500 research team.

  • 'We work with Maria Kilimiris. She is responsive, to the point and attentive to practical solutions.'
  • ‘The Law Offices Patrinos & Kilimiris team combines strong legal expertise across international and local frameworks, practical problem-solving, and a highly collaborative approach. Their ability to navigate complex issues with clarity and efficiency is a key strength.’
  • ‘All individuals of course are qualified professionals with technical expertise and long experience in IP matters. They pay attention to the details and follow up cases.’
  • ‘Patrinos & Kilimiris combines long-standing legal expertise with strong technical knowledge, offering clients clear and effective IP solutions. The firm consistently maintains its leading position by handling complex, high stakes matters with responsiveness and accountability. What sets them apart is the continuity of excellence across generations, paired with a modern, adaptable approach that keeps them aligned with clients’ evolving needs.’
  • 'Constantinos Kilimiris is one of Greece’s most respected names in IP law, and the office he heads is one of the oldest and best known in Greece. Likewise, Electra Kilimiris is also extremely competent and experienced in IP law.'

Key clients

  • Louis Vuitton Chanel Christian Louboutin Haleon TRU Kids Inc. Renault S.A.S. FCA US LLC Bristol-Myers Squibb Company Novartis AG Pfizer, Inc. Astra Zeneca AB Gilead Sciences LLC Amgen Inc. Merck Sharp & Dohme Corporation Allergan Inc. Yoplait Marques 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. Holland & Barrrett Retail Ltd. Yahoo, Inc. COOPERATION PHARMACEUTIQUE FRANÇAISE en abrégé COOPER SOTHYS INTERNATIONAL Beechfield Brands Limited Internet Group d.o.o Fox Media LLC Tequila Cuervo S.A. de C.V. The Clorox Company Portman Lights Sp. z o.o.

Work highlights

Representing the Hellenic Republic before the EUIPO in a cancellation action against a trademark registration in the name of an entity fully owned and controlled by the Turkish Republic for the trademark "Turkaegean."

Lawyers

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Leading partners

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Practice head

Constantinos Kilimiris; Maria Kilimiris

Other key lawyers

Electra Kilimiris; Manolis Metaxakis; Youli Angelou; Christos Xagoraris