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Portrait of José Luís Arnaut

José Luís Arnaut

Managing Partner

CMS Rui Pena & Arnaut
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 a member of the board of directors of several national and international entities.

Founding partner of CMS Rui Pena & Arnaut.

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José Luis Arnaut specialises in IP Law with particular strength in new technologies, patents and trademarks.

Chambers & Partners (2017)

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

Chambers Europe (2021)

José Luís Arnaut is "reliable, dynamic and knowledgeable".

Legal 500 (2017)

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

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), FICPI (Fédération Internationale de Conseils en Propriété Industrielle), ECTA (European Communities Trade Mark Association) and PTMG (Pharmaceutical Trade Marks Group)
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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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Show only
05 March 2021
Data pro­tec­tion and cy­ber­se­cur­ity laws in Por­tugal
Data pro­tec­tion 1. Loc­al data pro­tec­tion laws and scope In ad­di­tion to the GDPR, the Por­tuguese leg­al frame­work com­prises spe­cif­ic loc­al le­gis­la­tion on data pro­tec­tion, namely:Law no. 58/2019 of 8...
21 December 2020
On­line gambling law and reg­u­la­tion in Por­tugal
02 July 2020
CMS Rui Pena & Ar­naut at the top the Lead­ers League’s rank­ing
Lead­ers League dis­tin­guishes CMS Rui Pena and Ar­naut as one of the lead­ing law firms in IP Lit­ig­a­tion (Ex­cel­lent), Data Pro­tec­tion and Cy­ber­se­cur­ity (Highly Re­com­men­ded), and also Tech­no­logy (Ex­cel­lent).Lead­ers...
12 May 2020
CMS launches Data Law Nav­ig­at­or
With chapters ded­ic­ated to more than 30 coun­tries, the CMS Data Law Nav­ig­at­or in­teg­rates an over­view of data pro­tec­tion and cy­ber se­cur­ity le­gis­la­tion.The wide­spread use of tele­work­ing has made com­pan­ies...
15 April 2020
Com­mu­nic­a­tions as an es­sen­tial ser­vice dur­ing Coronavir­us (COV­ID-19) con­fine­ment  
The situ­ation caused by COV­ID-19 res­ul­ted in the de­clar­a­tion by Pres­id­en­tial De­cree no.14-A/2020, of 18 March, of a na­tion­al state of emer­gency on the grounds of pub­lic calam­ity. This state of emer­gency...
15 July 2019
CMS ad­vised Col­gate-Pal­molive on ac­quis­i­tion of Labor­atoires Filorga Cos­métiques
A CMS team cov­er­ing 11 jur­is­dic­tions, to­geth­er with Col­gate's US ad­visers, ad­vised Col­gate-Pal­molive in its ca. EUR 1.5bn ac­quis­i­tion of Labor­atoires Filorga Cos­métiques.Ori­gin­ally foun­ded in France...
18 May 2019
IN­TA An­nu­al Meet­ing 2019
Sev­er­al of our part­ners com­ing from over 15 dif­fer­ent coun­tries, will be at IN­TA's 2019 An­nu­al Meet­ing in Bo­ston, USA. To ar­range a meet­ing dur­ing IN­TA, please con­tact any of our del­eg­ates pro­filed be­low.To...
Brexit: In­tel­lec­tu­al Prop­erty Rights
The European Com­mis­sion and the United King­dom have es­tab­lished a trans­ition peri­od with­in the Brexit pro­cess, al­low­ing the UK to re­main as a European Uni­on mem­ber from March 29th, 2019 to Decem­ber 31st...
New Reg­u­la­tions con­cern­ing the European Uni­on Trade Mark
The Com­mis­sion Im­ple­ment­ing Reg­u­la­tion (EU) 2017/1431 of 18 May 2017 lay­ing down de­tailed rules for im­ple­ment­ing cer­tain pro­vi­sions of Coun­cil Reg­u­la­tion (EC) No 207/2009 on the European Uni­on trade mark...
Cross-bor­der on­line con­tent port­ab­il­ity
Reg­u­la­tion (EU) 2017/1128 of the European Par­lia­ment and of the Coun­cil of 14 June 2017Reg­u­la­tion (EU) 2017/1128 of the European Par­lia­ment and of the Coun­cil of 14 June 2017 on cross-bor­der port­ab­il­ity...
José Luís Ar­naut ap­poin­ted as one of the 18 mem­bers of Gold­man Sach­s' In­ter­na­tion­al...
José Luís Ar­naut was ap­poin­ted as one of the 18 mem­bers of Gold­man Sach­s' In­ter­na­tion­al Ad­vis­ory Board. José Luís Ar­naut re­marks “Such nom­in­a­tion rep­res­ents an im­port­ant and new chal­lenge for me...
Meet The Law | In­tel­lec­tu­al Prop­erty
Re­gis­tra­tion of new gTLDs and use of the Trade­mark Clear­ing­house­Please check the PDF for more de­tailed in­form­a­tion (Por­tuguese only).