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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Ana Celidonio

Ana Celidonio

Ana Celidonio’s specialism includes patents, business secrets, biotechnology, designs and plant varieties. She graduated with…

  • Partner
  • Lobo de Rizzo
  • Brazil

Christine Kanz

Christine Kanz

Christine Kanz has worked as an attorney since 1998. Although she has primarily focused on international patent litigation in…

  • Partner
  • Hoyng Rokh Monegier
  • Germany

Claudia Milbradt

Claudia Milbradt

Claudia Milbradt heads the German IP practice of Clifford Chance, specializing in patent and trade mark litigation and strategic…

  • Partner
  • Clifford Chance
  • Germany

Eldora Ellison

Eldora Ellison

Eldora Ellison is a director at Sterne Kessler Goldstein & Fox in the biotechnology and chemical and trial and appellate practice…

  • Director
  • Sterne Kessler Goldstein & Fox

Gunars Gaikis

Gunars Gaikis

Gunars Gaikis is a pre-eminent and pioneering leader in life sciences IP. He has particularly focused on patent, regulatory and…

  • Partner
  • Smart & Biggar
  • Canada

Heidi Lindner

Heidi Lindner

Heidi Lindner is a founding partner and head of the patent litigation department at Arochi & Lindner. She has experience in patent…

  • Founding Partner
  • Arochi & Lindner
  • Mexico

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,…

  • Business area manager, north Sweden
  • AWA Sweden
  • Sweden

Lara Dorigo

Lara Dorigo

Lara Dorigo represents and advises clients in contentious and non-contentious IP matters. She has particularly vast experience…

  • Counsel
  • Lenz & Staehelin
  • Switzerland

MaryAnne Armstrong

MaryAnne Armstrong

MaryAnne Armstrong is a partner at Birch, Stewart, Kolasch & Birch, and focuses her practice on prosecuting patent applications…

  • Partner
  • Birch, Stewart, Kolasch & Birch

Melisa Litvin

Having practised IP law for more than 17 years, Melisa Litvin has gained experience in all areas of IP including patents, trademarks,…

  • Founding partner
  • Litvin Marzorati Legales
  • Argentina

Nicola Dagg

Nicola Dagg

Nicola Dagg leads Kirkland & Ellis' intellectual property litigation practice in London. She has experience in the enforcement…

  • Partner
  • Kirkland & Ellis
  • UK

Vladislav Ugryumov

Vladislav Ugryumov

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

  • Partner
  • Gowling WLG
  • Russia

Harry Roper

Harry Roper

Harry Roper is the chair of the patent litigation and counselling practice at Jenner & Block. He has represented clients in a…

  • Partner, chair of patent litigation
  • Jenner & Block
  • United States

Henrik Timmann

Henrik Timmann

Henrik Timmann was called to the Bar in 1998 and has been a partner at Rospatt Osten Pross since 2003. He has experience in all…

  • Partner
  • Rospatt Osten Pross
  • Germany

Jane Wainwright

Jane Wainwright

Jane Wainwright is a partner at Potter Clarkson and a life sciences patent attorney. She has considerable experience of coordinating…

  • Partner
  • Potter Clarkson
  • UK

Janet Xiao

Janet Xiao is a partner at Morrison Foerster and co-chairs the global life sciences group. She represents clients in the biotechnology…

  • Partner
  • Morrison Foerster
  • United States

Jason Chan

Jason Chan

Jason Chan focuses his practice on intellectual property and commercial-related disputes in Taiwan. Before joining the firm he…

  • Director of litigation
  • Amica Law
  • Singapore

Javier Fernández-Lasquetty

Javier Fernández-Lasquetty heads the legal and business department at Elzaburu. His practice covers patents, trademarks, unfair…

  • Partner
  • Elzaburu
  • Spain

Jeffrey Lewis

Jeffrey Lewis

Jeffrey Lewis’s practice focuses on intellectual property-related disputes and counselling, with an emphasis on competitor patent…

  • Partner
  • Foley Hoag
  • United States

Jeppe Brinck-Jensen

Jeppe Brinck-Jensen

Jeppe Brinck-Jensen has been a partner at Plesner and has represented clients in the medical devices, biotechnology, healthcare,…

  • Partner
  • Plesner
  • Denmark

Jiancheng Jiang

Jiancheng Jiang

Jiancheng Jiang is a managing partner at Wanhuida Peksung. In 1988, he registered to practise before the China Patent Office and…

  • Patent and trademark attorney
  • Wanhuida Peksung
  • China

Jim Ford

Jim Ford is a partner at Allen & Overy. He focuses on non-contentious intellectual property law, as well as strategic and commercial…

  • Partner
  • Allen & Overy
  • UK

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