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Portrait of José Luís Arnaut

José Luís Arnaut

Managing Partner

CMS Portugal
Rua Castilho 50
1250-071 Lisbon
Languages Portuguese, English, French, Spanish

José Luís Arnaut has a vast experience on legal strategic advice to public and private companies. His main areas of practice include restructuring, privatisations, mergers and acquisitions and private equity.

His career has started as a lawyer within the practice area of intellectual property law with special focus on patent, trademarks, domain names, new technologies and competition law, areas where José Luís reached high level of recognition.

José Luís Arnaut is acknowledged by Legal 500 as Leading Individual and is on the Hall of Fame for Intellectual Property. He is also recognised by Chambers and Partners as Eminent Practicioner for Intellectual Property. Moreover, he was awarded Best Practice - Outstanding Achievement Award, by Iberian Lawyer, in 2021 and Trade mark and Transactions star 2021, by IP Stars. He is also recommended by Who is Who Legal for Iberia Trademarks and IP-Trademarks and he is a recognised Lawyer for IP by Best Lawyers, since 2010.

José Luís Arnaut is a member of the board of directors of several national and international entities.

Founding partner of CMS Portugal.

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José Luis Arnaut is well known in the market and offers expertise in trade mark issues with ancillary knowledge of data protection matters.

Chambers and Partners (2021)

We have been working mainly with Miguel Quintans and José Luis Arnaut. All of them are experts in their practice, with deep knowledge of the general legal framework, thus ensuring that all issues are dealt with professionally and efficiently.

Legal 500 (2021)

Leading Individual and Hall of Fame for Intellectual Property

Legal 500 (2021)

Recognised Lawyer for Data Privacy and Data Protection and TMC

Legal 500 (2021)

Eminent Practicioner for Intellectual Property

Chambers and Partners (2021)

Best Practice, Outstanding Achievement Award

Iberian Lawyer (2021)

Recognised Lawyer for Intellectual Property

Best Lawyers

Trade mark star 2021 and Transactions star 2021

IP Stars

José Luis Arnaut is well known in the market and offers expertise in trade mark issues, including portfolio management, anti-counterfeiting and brand protection matters. One commentator describes him as being "a statesman when it comes to intellectual property, delivering unparalleled levels of advice, which add incommensurable value to the work being carried out.“

Chambers Europe (2022)

Relevant experience

  • Since 1992 he has been European Patent Attorney at the European Patent Office (Munich).
  • Since 1996 he has been European Trademark Attorney at the European Union Office for Harmonization in the Internal
  • Market (Alicante) and Official Industrial Property Agent at the I.N.P.I. - National Institute of Industrial Property
  • In 1996 he was a member of the Monitoring and Revision Commission of the Industrial Property Code and between 1998 and 1999 he was a Member of the Revision Commission of the Industrial Property Code
  • He was a Member of Parliament for 12 years
  • He was Minister of State to the Prime Minister José Manuel Durão Barroso (2002 - 2004) and Minister of Cities, Local Administration, Housing and Regional Development (2004 - 2005). He was President of the Foreign Affairs Committee of the Portuguese Parliament (2005 - 2008)
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Memberships & Roles

  • Member of the Portuguese Bar Association since 1996
  • Member of ABA – American Bar Association since 1996
  • Member of several international associations related with his area of practice, in which he has already held leading posts:  INTA (International Trademark Association), AIPPI (Association Internationale pour la Protection de la Propriété Industrielle)
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  • ARNAUT, José Luís; MIOLUDO, João Paulo; GUIA, Diogo – “Marcas & Patentes Legislação”, Lisboa, Texto Editora, 2009
    Independent European Sport Review de 2006
  • ARNAUT, José Luís, - “Livro Verde sobre a Patente Comunitária e o Sistema de Patentes na Europa”, in Seminário do INPI, Lisboa, 1998
  • ARNAUT, José Luís, - “A Marca Comunitária na União Europeia” – in XVI Seminário Nacional de Propriedade Intelectual da ABPI, São Paulo, Brasil, 1996
  • ARNAUT, José Luís, - “Recursos Judiciais das Decisões do INPI”, in Seminário da Propriedade Industrial, INPI, 1995
  • ARNAUT, José Luís (co-author) “Portugal” chapter, published in International Protection of Intellectual Property Rights, of Center for International Legal Studies de Viena, 1995
  • ARNAUT, José Luís, - “License and Distribution Agreements in Portugal”, in Gazette Law Society House, London, 1993
  • ARNAUT, José Luís, - “La Marque Tridimensionelle en Droit  Portugais”, Université Robert Schuman, Strasbourg, 1990
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  • Law degree, Faculdade de Direito, Universidade Lusíada de Lisboa
  • Diplôme d’Études Supérieures Spécialisées en “Accords et Propriété Industrielle”, CEIPI – Centre d’Études Internationales de la Propriété Industrielle, Université Robert Schuman em Strasbourg
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