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

Gerald Flattmann

Gerald Flattmann

Gerald Flattmann focuses his practice on patent litigation, licensing, and counselling. His clients have included companies in…

  • Partner
  • King & Spalding
  • United States

Gesheng Huang

Gesheng Huang earned his degree in microbiology in 1986 from Wuhan University and his diplomas in law from the University of International…

  • Patent and trademark attorney
  • Zhongzi Law Office
  • China

Giovanni Ghirardi

Giovanni Ghirardi’s broad-reaching expertise spans all areas of intellectual property law, including pan-European issues, cross-border…

  • Partner
  • Hogan Lovells
  • Italy

Grégoire Desrousseaux

Grégoire Desrousseaux joined August Debouzy in 2010 and co-leads a team of lawyers with engineering qualifications who focus…

  • Partner
  • August Debouzy
  • France

Gregory York

Gregory York is a partner at Pearne & Gordon and has experience in preparing and prosecuting patent applications in the biotechnological,…

  • Partner
  • Pearne & Gordon
  • United States

Gualtiero Dragotti

Gualtiero Dragotti

Gualtiero Dragotti is a partner at DLA Piper and has experience in all areas of intellectual property, focusing on patents and…

  • Partner
  • DLA Piper
  • Italy

Hae-In Kim

Hae-In Kim is a partner and patent attorney at AJU Kim Chang & Lee. She manages communication with foreign clients about their…

  • Partner
  • AJU Kim Chang & Lee
  • South Korea

Hanna Paloheimo

Hanna Paloheimo

Hanna Paloheimo works as counsel at Castrén & Snellman Attorneys and is also responsible for the firm’s life sciences practice.…

  • Counsel
  • Castrén & Snellman
  • Finland

Hans-Rainer Jaenichen

Hans-Rainer Jaenichen

Hans-Rainer Jaenichen is a partner at Vossius & Partner and experienced in all areas of intellectual property. He deals with prosecution,…

  • Partner
  • Vossius & Partner
  • Germany

Harold Fox

Harold Fox

Harold Fox is co-chair of Steptoe & Johnson’s intellectual property group and leads the firm’s patent counselling and prosecution…

  • Partner
  • Steptoe & Johnson
  • United States

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