Leaders Directory

WIPR Leaders is a one-stop guide to the leading IP practitioners in the world. The handbook lists over 1,700 lawyers across patent, trademark, and copyright practices. Stemming from a four month nomination period in which we sought views from 12,000 IP professionals, our research team vetted every nominated lawyer for suitability by exploring their work. This meant looking at practice history, industry expertise and notable cases, as well as any additional activities, such as writing and teaching responsibilities, which have allowed the lawyers to shape and influence other and future IP practitioners.

Interested in obtaining our WIPR Leaders handbooks? Find out more about the handbooks here.

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David Aylen

David Aylen

David Aylen is managing partner at Gowling WLG where he focuses on intellectual property litigation, patent and trademark prosecution…

  • Managing partner
  • Gowling WLG
  • Russia

Fernando Becerril

Fernando Becerril

Fernando Becerril joined the firm in 1990, became director of intellectual property management in 2000, and went on to become…

  • Chief executive officer
  • Becerril, Coca & Becerril
  • Mexico

Işık Özdoğan

Işık Özdoğan

Işık Özdoğan is a partner at Moroğlu Arseven and leads the firm’s IP team, serving a portfolio of long-standing, high-profile…

  • Partner
  • Moroglu Arseven
  • Turkey

Jorge Leon

Jorge Leon

Jorge Leon is the head of the copyright and IP litigation and enforcement department at C&L Attorneys. His practice focuses on…

  • Attorney at law
  • C&L Attorneys
  • Mexico

Linda Chang

Linda Chang

In 1995 Linda Chang was one of the first trademark agents to qualify under China’s emerging intellectual property regulatory…

  • Partner
  • Rouse & Co International
  • China

Maria Fernanda Castellanos

Maria Fernanda Castellanos

Maria Fernanda Castellanos is a partner at Brigard Castro and has experience in copyright, domain names and strategic consulting.…

  • Partner
  • Brigard Castro
  • Colombia

Mariacristina Rapisardi

Mariacristina Rapisardi is the founder of Rapisardi Intellectual Property and has been managing the intellectual property group…

  • Founder
  • Rapisardi Intellectual Property
  • Italy

Spring Chang

Spring Chang

Spring Chang is a founding partner at Chang Tsi & Partners, and is based in the firm’s Beijing office. She has more than two…

  • Founding partner
  • Chang Tsi & Partners
  • China

Nina Ringen

Nina Ringen

Nina Ringen is head of Lundgrens’ intellectual property group and has worked at the firm since 2013. Her practice focuses on…

  • Partner
  • Lundgrens
  • Denmark

Oleksandr Mamunya

Oleksandr Mamunya has been practising intellectual property law since 2003 and specialises in trade names, domain names, licensing,…

  • Partner
  • Aequo
  • Ukraine

Pablo Palazzi

Pablo Palazzi is a partner at Allende & Brea, and his practice focuses on computer crime law, big data, and domain names. He graduated…

  • Partner
  • Allende & Brea Abogados
  • Argentina

Patricia Hoet-Limbourg

Patricia Hoet-Limbourg

Patricia Hoet-Limbourg joined Hoet Peláez Castillo & Duque as a legal assistant and became partner in 2003. She gained her law…

  • Partner
  • Hoet Peláez Castillo & Duque
  • Venezuela

Patricia Lusoli

Patricia Lusoli

Patricia Lusoli started her trademark career in 1996 and has extensive knowledge in trademark prosecution and litigation, unfair…

  • Senior partner
  • Guerra IP
  • Brazil

Patrick Ikimire

Patrick Ikimire has worked at Kaplan & Stratton since 1995 and became a partner in 2010. His practice focuses on intellectual…

  • Partner
  • Kaplan & Stratton Advocates
  • Kenya

Peter Eduardo Siemsen

Peter Eduardo Siemsen

Peter Eduardo Siemsen started his career 30 years ago at Dannemann Siemsen. He is currently vice president of the Brazilian Association…

  • Partner
  • Dannemann Siemsen
  • Brazil

Philip Lapin

Philip Lapin

More than 25 years of experience and a high rate of success has earned Philip Lapin recognition as one of Canada's leading trade…

  • Partner
  • Smart & Biggar
  • Canada

Rachel Colley

Rachel Colley

Rachel Colley is a partner at Create IP, where she advises on transactional and contentious intellectual property matters. She…

  • Partner
  • Create IP
  • New Zealand

Rafael Lacaz Amaral

Rafael Lacaz Amaral

Rafael Lacaz is a senior partner and one of the heads of the litigation team of the Rio de Janeiro office and acts in IP litigation…

  • Senior partner
  • Kasznar Leonardos
  • Brazil

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