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 two volumes: over 900 individuals in the both the patent and the trademarks section (some individuals are in both). 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.

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Charmayne Ong

Charmayne Ong

Charmayne Ong is a partner and head of intellectual property at Skrine. She is registered as a patent agent, design agent and…

  • Partner, head of IP
  • Skrine
  • Malaysia

Claudia Milbradt

Claudia Milbradt

Claudia Milbradt is a partner at Clifford Chance and has worked there since 1999. She specialises her practice in patent litigation,…

  • Partner
  • Clifford Chance
  • Germany

Colin Ingram

Colin Ingram

Colin Ingram is a partner at Smart & Biggar/Fetherstonhaugh and practises in patent prosecution and litigation. He has represented…

  • Partner
  • Smart & Biggar/Fetherstonhaugh
  • Canada

Gunars Gaikis

Gunars Gaikis

Gunars Gaikis has more than 25 years’ experience in life sciences intellectual property litigation. He has particularly focused…

  • Partner
  • Smart & Biggar/Fetherstonhaugh
  • Canada

Inga-Lill Andersson

Inga-Lill Andersson

Inga-Lill Andersson is a senior European patent attorney who specialises in chemistry and biotechnology, focusing on protein chemistry,…

  • Partner
  • Awapatent
  • Sweden

Maksym Bocharov

Maksym Bocharov

Maksym Bocharov is head of the patent department at Gorodissky & Partners (Ukraine) and has been with the firm since 2005. His…

  • Deputy Director
  • Gorodissky & Partners (Ukraine)
  • Ukraine

Peter Indahl

Peter Indahl

Peter Indahl has been practising law since 1986 and a European patent attorney at Indahls. He has experience in all areas of intellectual…

  • Patent attorney
  • Indahls
  • Denmark

Vivien Chan

Vivien Chan

Vivien Chan is a senior partner of Vivien Chan & Co, and has more than 30 years of experience in M&A, information technology,…

  • Senior partner
  • Vivien Chan & Co
  • Hong Kong

Vladislav Ugryumov

Vladislav Ugryumov

Vladislav Ugryumov specialises his practice in patent litigation and prosecution and has extensive experience representing clients…

  • Partner
  • Gowling WLG
  • Russia

Ásdís Magnúsdóttir

Ásdís Magnúsdóttir has more than ten years’ experience in intellectual property law and is a partner at Arnason Faktor.…

  • Partner
  • Arnason Faktor
  • Iceland

At van Rooy

At van Rooy

At van Rooy is a director, head of the patent department and executive committee chairman at Kisch IP and has 25 years of experience…

  • Director
  • Kisch IP
  • South Africa

Ave Piik

Ave Piik

Ave Piik is an attorney at Derling focusing mainly on IT and technology, data protection and intellectual property matters as…

  • Attorney
  • Derling
  • Estonia

Axel Verhauwen

Axel Verhauwen was admitted to the Bar in 1996 and began to focus on patent law; he also has experience in trademark, unfair competition,…

  • Patent attorney
  • Krieger Mes & Graf v der Groeben
  • Germany

Baris Atalay

Baris Atalay

Baris Atalay, a qualified patent attorney, is a partner at Stan Advoka and mainly undertakes the drafting of patent applications…

  • Partner
  • Stan Advoka
  • Turkey

Barry Moore

Barry Moore

Barry Moore is a partner at Hanna Moore + Curley, where he works as a European patent and trademark attorney. He specialises in…

  • Director
  • Hanna Moore + Curley
  • Ireland

Barry Purdy

Barry Purdy is a co-founder of PurdyLucey and has more than 20 years’ experience advising clients on intellectual property matters.…

  • Co-founder
  • PurdyLucey
  • Ireland

Bart Swinkels

Bart Swinkels

Bart Swinkels is a partner at NLO and has worked there since 2000. Before joining the firm he worked as a molecular biologist…

  • Partner
  • NLO
  • Netherlands

Barton Showalter

Barton Showalter is a partner and the firmwide chair of the intellectual property practice at Baker Botts. He has experience in…

  • Partner
  • Baker Botts
  • United States

Bas Berghuis Van Woortman

Bas Berghuis Van Woortman

Bas Berghuis Van Woortman, a partner at Simmons & Simmons Amsterdam, works in all areas of intellectual property, with a focus…

  • Partner
  • Simmons & Simmons
  • Netherlands

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