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

Marcela Trigo de Souza

Marcela Trigo de Souza

Marcela Trigo de Souza is an intellectual property attorney with more than ten years’ experience in the firm’s information…

  • Partner
  • Trench Rossi Watanabe
  • Brazil

Margareta Oproiu

Margareta Oproiu

Margareta Oproiu is a managing partner at Cabinet M Oproiu and founded the firm in 1995 with Raluca Vasilescu. She became a registered…

  • Managing partner
  • Cabinet M Oproiu
  • Romania

Markus Wang

Markus Wang is a member of the management board of Bär & Karrer and heads the intellectual property team. His practice covers…

  • Partner
  • Bär & Karrer
  • Switzerland

Matthew Murphy

Matthew Murphy

Matthew Murphy has more than 20 years of China and Asia-Pacific legal experience focusing on intellectual property. His notable…

  • Partner
  • MMLC Group
  • China

Mattias Malmstedt

Mattias Malmstedt

Mattias Malmstedt specialises in all parts of intellectual property law, patent, trademark, design, copyright and trade secret…

  • Partner
  • Gulliksson
  • Sweden

Michael Burdon

Michael Burdon

Michael Burdon is a partner at Simmons & Simmons. He originally qualified in Australia with degrees in law and after moving to…

  • Partner
  • Simmons & Simmons
  • UK

Mike Chen

Mike Chen

Mike Chen began his professional career as a judge at the Intellectual Property Tribunal of the Beijing First Intermediate Court…

  • Patent attorney
  • Kangxin Partners
  • China

Mike Gilbert

Mike Gilbert

Mike Gilbert is an intellectual property lawyer and partner at Marks & Clerk Solicitors. Gilbert heads up the firm’s pharma…

  • Partner
  • Marks & Clerk
  • UK

Mikkel Vittrup

Mikkel Vittrup has worked at Plesner since 2000 and is a partner in the firm’s intellectual property and life sciences practices.…

  • Partner
  • Plesner
  • Denmark

Neil Coulson

Neil Coulson

Neil Coulson is an intellectual property partner at Baker Botts, with a broad-based practice focused on dispute resolution and…

  • Partner
  • Baker Botts
  • UK

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