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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Laura Collada

Laura Collada

Laura Collada has 25 years' experience in intellectual property and is a managing partner at Dumont Bergman Bider & Co, where…

  • Managing partner
  • Dumont Bergman Bider & Co
  • Mexico

Vivien Chan

Vivien Chan

Vivien Chan is a senior partner of Vivien Chan & Co, and has more than 30 years of information technology, intellectual property…

  • Senior partner
  • Vivien Chan & Co.
  • Hong Kong

Adonna Alkema

Adonna Alkema

Adonna Alkema focuses her practice on copyright, database rights, trademarks, domain names, unfair competition, advertising, product…

  • Partner
  • Hofhuis Alkema Groen Advocaten
  • Netherlands

Alistair Payne

Alistair Payne

Alistair Payne, a principal at Acuatus, has extensive experience in all aspects of intellectual property law. He has represented…

  • Principal
  • Acuatus
  • Ireland

Anton Gibson

Anton Gibson

Anton Gibson is a partner at AJ Park, where he heads the Auckland office's life sciences patent practice. With 20 years of experience…

  • Partner
  • AJ Park
  • New Zealand

Bernard Malone

Bernard Malone

Bernard Malone is a partner at Baker McKenzie and is based in the firm's Buenos Aires office. His practice focuses on brand management,…

  • Partner
  • Baker McKenzie
  • Argentina

Carlos Perez De La Sierra

Carlos Perez De La Sierra is a founding partner at CalderĀ¢n & De La Sierra and has focused his practice on counselling, prosecution,…

  • Founding partner
  • CalderĀ¢n & De La Sierra
  • Mexico

Carol Plunkett

Carol Plunkett

Carol Plunkett is a partner with William Fry and a commercial litigator of more than thirty-five years standing. She has particular…

Casey Chisick

Casey Chisick

Casey Chisick is a partner at Cassels Brock and has experience in all areas of intellectual property. His notable cases include…

  • Partner
  • Cassels Brock & Blackwell
  • Canada

Constance Rhebergen

Constance Rhebergen achieved her BS in chemical engineering from Northwestern University in 1986, her JD from the University of…

  • Partner
  • Bracewell
  • Texas

Damian Broadley

Damian Broadley

Damian Broadley is the managing partner at AJ Park and has worked at the firm for 23 years. He practises exclusively in intellectual…

  • Managing partner
  • AJ Park
  • New Zealand

Donald Cameron

Donald Cameron

In one of Donald Cameron's notable cases he took on pharmaceutical company Bayer CropScience in a patent infringement action centring…

  • Partner
  • Bereskin & Parr
  • Canada

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