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

Cesare Galli

Cesare Galli

Cesare Galli has practised intellectual property since 1986 and founded the firm in 2004. He has a particular focus on litigation…

  • Managing partner
  • IP Law Galli
  • Italy

CF Tsai

CF Tsai

CF Tsai has been practising intellectual property law since 1982 and represents clients in the mechanical, electrical, medical…

Charles Calkins

Charles Calkins

Charles Calkins’ practice specialises in US patent law and intellectual property transactions. Calkins currently serves as the…

  • Partner
  • Kilpatrick Townsend & Stockton
  • United States

Charles Larsen

Charles Larsen

Charles Larsen is a partner at White & Case and works in both London and Boston. He advises clients on IP portfolio strategy,…

  • Partner
  • White & Case
  • UK

Charles Lipsey

Charles Lipsey

Charles Lipsey is a partner at Finnegan and focuses his practice on all aspects of intellectual property litigation, with a particular…

  • Partner
  • Finnegan Henderson Farabow Garrett & Dunner
  • United States

Charles Verhoeven

Charles Verhoeven’s skills extend to patent and trade secrets disputes and he has represented a number of internet and life…

  • Partner
  • Quinn Emanuel Urquhart & Sullivan
  • United States

Charles Walker

Charles Walker is head of intellectual property disputes at Norton Rose Fulbright and has experience in all areas of IP. His notable…

  • Head of IP disputes
  • Norton Rose Fulbright
  • United States

Christian Osterrieth

Christian Osterrieth

Christian Osterrieth has worked as an attorney since 1984. Since 1986 he has practised exclusively in the field of national, European…

  • Partner
  • Hoyng Rokh Monegier
  • Germany

Christian Schmidt

Christian Schmidt has worked in intellectual property law since 1990 and was admitted to practise as a German patent attorney…

  • Patent attorney
  • Manitz, Finsterwald & Partner
  • Germany

Christina Gates

Christina Gates’ PhD in molecular biology emphasises her experience in the biotechnology, biochemistry and medical devices fields,…

  • Managing partner
  • Tomkins & Co
  • Ireland

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