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

Ben Allgrove

Ben Allgrove

Ben Allgrove is a partner at Baker McKenzie’s intellectual property and IT/communications practice groups. He advises on contentious…

  • Partner
  • Baker McKenzie
  • UK

Ben Natter

Ben Natter

Ben Natter is a partner at Haug Partners, based in the firm’s New York office. He focuses his practice on all aspects of global…

  • Partner
  • Haug Partners
  • US

Ben Rapinoja

Ben Rapinoja obtained a master of laws in 1993 from the University of Helsinki. He then trained on the bench at the Notary District…

  • Partner
  • Borenius Attorneys
  • Finland

Bernadette Versfeld

Bernadette Versfeld

Bernadette Versfeld has extensive experience advising on protection, management and exploitation of intellectual property, particularly…

  • Partner
  • Webber Wentzel
  • South Africa

Bert Oosting

Bert Oosting

Bert Oosting graduated from the University of Utrecht with a degree in neuropsychology in 1986 and then worked as a researcher…

  • Partner
  • Hogan Lovells
  • Netherlands

Bienvenido Marquez III

Bienvenido Marquez III

Bienvenido Marquez III is a partner at Quisumbing Torres, a member firm of Baker McKenzie International. He handles intellectual…

  • Partner
  • Quisumbing Torres, member firm of Baker McKenzie International
  • Philippines

Bill Lister

Bill Lister

Bill Lister graduated from the University of Oxford and practised as a barrister for six years before requalifying as a solicitor.…

  • Partner
  • Appleyard Lees
  • UK

Brian Kingwell

Brian Kingwell

Brian Kingwell is a partner at Gowling WLG and works in the firm’s Vancouver office. For more than 20 years he has focused his…

  • Partner
  • Gowling WLG
  • Canada

Camilla Vislie

Camilla Vislie

Camilla Vislie is a partner at Thommessen and heads the firm’s intellectual property and technology practice. She focuses on…

  • Partner
  • Thommessen
  • Norway

Candy Chen

Candy Chen

Candy Chen is a partner at Tsai, Lee & Chen. She is a professional engineer, registered Taiwan patent attorney and a registered…

  • Partner
  • Tsai, Lee & Chen
  • Taiwan

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