Leaders Directory

WIPR Leaders is a one-stop guide to the leading IP practitioners in the world. The handbook lists over 1,500 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.

Interested in obtaining our WIPR Leaders handbooks? Find out more about the handbooks here.

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Ana Castaneda

Ana Castaneda

Ana Castañeda is an attorney-at-law with a technical background as an electronic engineer and founder of C&L Attorneys. She has…

  • Partner, Head of Patent and Trademark Department
  • C&L Attorneys
  • Mexico

Ana Celidonio

Ana Celidonio

Ana is a partner and head of the Intellectual Property practice. With 19 years of experience, has a vast international experience…

  • Partner
  • Lobo de Rizzo
  • Brazil

Annsley Merelle Ward

Annsley Merelle Ward

Annsley Merelle Ward, perhaps better known as ‘AmeriKat’, is a senior associate at Bristows. As the longest serving member…

  • Senior Associate
  • Bristows

Archana Shanker

Archana Shanker

Archana Shanker is a senior partner and head of the patent and designs department at Anand & Anand. She is an active contributing…

  • Senior Partner and head of Patents and Designs
  • Anand & Anand
  • India

Axel Nordemann

Axel Nordemann

Axel Nordemann is a partner at Boehmert & Boehmert in Berlin and studied law at the Universities of Göttingen and Munich. Before…

Bruce Horowitz

Bruce Horowitz

Notable cases that Bruce Horowitz and his team have handled include the first sound mark registration in South America (‘Intel’…

  • Partner
  • Paz Horowitz Robalino Garcés
  • Ecuador

Byron Robayo

Byron Robayo

Byron Robayo has been a partner with Paz Horowitz since 2011 and is a member of a number of professional affiliations including…

  • Partner
  • Paz Horowitz Robalino Garcés
  • Ecuador

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

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

Christian Appelt

Christian Appelt

Christian Appelt focuses on the counselling of SMEs in Germany and Europe in all aspects of intellectual property, especially…

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 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 whose litigation practice spans all areas of intellectual property with a particular…

  • Partner
  • Smart & Biggar
  • Canada

Cordula Schumacher

Cordula Schumacher

Cordula Schumacher is a partner at Arnold Ruess and her expertise in IP law includes patent infringement and validity proceedings.…

  • Partner
  • Arnold Ruess
  • Germany

Crystal Chen

Crystal Chen

Crystal Chen is a partner at Tsai, Lee & Chen and her practice focuses on patents, trademarks, copyright, trade dress, IP enforcement,…

  • Partner
  • Tsai Lee & Chen
  • Taiwan

Daphne Lainson

Daphne Lainson

Daphne Lainson is a partner at Smart & Biggar, a qualified patent agent and holds an advanced degree in chemistry. She champions…

  • Partner
  • Smart & Biggar
  • Canada

Darani Vachanavuttivong

Darani Vachanavuttivong

Darani Vachanavuttivong is a co-managing partner and managing director of the intellectual property group at Tilleke & Gibbins.…

  • Co-Managing Partner and Managing Director, Intellectual Property
  • Tilleke & Gibbons
  • Thailand

Dilek Zeybel

Dilek Zeybel

Dilek Zeybel is one of the managing partners at Orbis Vista responsible for all areas of obtaining and enforcing intellectual…

  • Partner
  • Orbis Vista
  • Turkey

Ekaterina Tsimberis

Ekaterina Tsimberis

Ekaterina Tsimberis is a partner at Smart & Biggar. Her practice focuses on providing sophisticated trademark protection, management,…

  • Partner
  • Smart & Biggar
  • Canada

Ella Mikkola

Ella Mikkola

Ella Mikkola works as a partner at Bird & Bird and has experience in all areas of intellectual property law. She achieved her…

  • Partner
  • Bird & Bird
  • Finland

Fernando Becerril

Fernando Becerril

Fernando Becerril joined the firm in 1990, became director of intellectual property management in 2000, and went on to become…

  • Chief executive officer
  • Becerril, Coca & Becerril
  • Mexico

François Guay

François Guay

François Guay has practised intellectual property for 35 years and advises on litigation strategies. He has argued cases related…

  • Partner
  • Smart & Biggar
  • Canada

Guan Huat Khoo

Guan Huat Khoo

Guan Huat Khoo joined Skrine in 1993 and chairs the intellectual property dispute resolution practice group. He has represented…

  • Partner
  • Skrine
  • Malaysia

Gunars Gaikis

Gunars Gaikis

Gunars Gaikis is one of Canada’s premier and most experienced life sciences intellectual property litigators. During his more…

  • 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 and head of patent litigation
  • Arochi & Lindner
  • Mexico

Heinz Goddar

Heinz Goddar

Heinz Goddar is a European and German patent and trademark attorney at Boehmert & Boehmert. He teaches intellectual property law…

Ida Gjessing

Ida Gjessing

Ida Gjessing earned her law degree at the University of Oslo and holds a lawyer’s practising certificate. She has worked as…

  • Partner
  • Advokatfirmaet GjessingReimers AS
  • Norway

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

Jeremy Want

Jeremy Want

Jeremy Want has close to 20 years of experience in intellectual property litigation and is a partner at Smart & Biggar. He has…

  • Partner
  • Smart & Biggar
  • Canada

Jo-Ann See

Jo-Ann See

For more than 25 years Jo-Ann See has represented a number of businesses in intellectual property protection and disputes. She…

  • Director
  • Amica Law
  • Singapore

Juan Carlos Amaro

Juan Carlos Amaro

Juan Carlos Amaro is president of the intellectual property litigation committee of the Mexican chapter of the International Chamber…

  • Partner, legal director
  • Becerril, Coca & Becerril
  • Mexico

Laëtitia Bénard

Laëtitia Bénard

Laëtitia Bénard leads Allen & Overy’s Paris office’s IP practice, co-heads the firm’s life sciences group worldwide, and…

  • Partner
  • Allen & Overy
  • France

Lara Dorigo

Lara Dorigo

Lara Dorigo of Lenz & Staehelin represents clients in intellectual property disputes at Swiss courts or before arbitral tribunals.…

  • Partner
  • Lenz Steahelin
  • Switzerland

Laura Collada

Laura Collada

Laura Collada has more than 30 years’ experience in intellectual property and is a managing partner at Dumont, where she has…

  • Managing Partner
  • Dumont
  • Mexico

Lech Bury

Lech Bury is a partner at Bury & Bury. He founded the firm with his son and has been listed as a European patent attorney since…

  • Partner
  • Bury & Bury
  • Poland

Lorraine Tay

Lorraine Tay

Lorraine Tay is joint managing partner at Bird & Bird Singapore and heads the firm’s IP and technology group in Singapore. Tay…

  • Joint Managing Partner
  • Bird & Bird
  • Singapore

Mahua Roy Chowdhury

Mahua Roy Chowdhury

Mahua Roy Chowdhury is the founder and principal partner of Royzz & Co. She started her career as a litigator in the Delhi High…

  • Principal partner
  • Royzz & Co
  • India

Maksym Bocharov

Maksym Bocharov

Maksym Bocharov is deputy director at Gorodissky & Partners Ukraine and has been with the firm since 2005. His practice is focused…

  • Deputy director
  • Gorodissky & Partners (Ukraine)
  • Ukraine

Marek Bury

Marek Bury is chairman of Bury & Bury, having founded the firm with his father in 2015. His specialises in patents, especially…

  • Chairman
  • Bury & Bury
  • Poland

Mariacristina Rapisardi

Mariacristina Rapisardi is the founder of Rapisardi Intellectual Property and has been managing the intellectual property group…

  • Founder
  • Rapisardi Intellectual Property
  • Italy

Natalia Gulyaeva

Natalia Gulyaeva

Natalia Gulyaeva joined Hogan Lovells in 2000 and since 2004 has headed the firm’s intellectual property, media and technology…

  • Partner
  • Hogan Lovells
  • Russia

Nina Moshynska

Nina Moshynska

Patent and trademark attorney Nina Moshynska is a founder of Gorodissky & Partners Ukraine, where she also serves as managing…

  • Managing partner in Ukraine
  • Gorodissky & Partners Ukraine
  • Ukraine

Octavio Espejo

Octavio Espejo

Octavio Espejo is a senior patent attorney at Becerril, Coca & Becerril and has worked at the firm since 2005. He is a mechanical…

  • Associate
  • Becerril, Coca & Becerril
  • Mexico

Oliver Scherenberg

Oliver Scherenberg

Oliver Scherenberg was admitted to the German Bar in 2005. He started his career at Freshfields and later became partner of German…

  • Partner
  • Scherenberg Legal & Licensing
  • Germany

Pascal Lefort

Pascal Lefort

Pascal Lefort is a partner at Duclos, Thorne, Mollet-Viéville & Associés and has worked there for 26 years. He has experience…

  • Partner
  • Duclos, Thorne, Mollet-Viéville & Associés
  • France

Patricia McGovern

Patricia McGovern

Patricia McGovern is chairman and head of the intellectual property department at DFMG Solicitors. She obtained an honours degree…

  • Chairman
  • DFMG Solicitors
  • Ireland

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

Rahul Chaudhry

Rahul Chaudhry

Rahul Chaudhry is managing partner at Rahul Chaudhry & Partners. He achieved his postgraduate diploma in IP law from the Indian…

  • Managing partner
  • Rahul Chaudhry & Partners
  • India

Sabine Age

Sabine Age

Sabine Agé is a partner at Véron & Associés, having specialised in the different aspects of intellectual property since 1994.…

  • Partner
  • Hoyng Rokh Monegier Verón
  • France

Say Sujintaya

Say Sujintaya

Say Sujintaya is a partner at Baker McKenzie Bangkok, where she co-heads the recently merged IP, technology, and communications…

  • Partner
  • Baker McKenzie
  • Thailand

Selma Ünlü

Selma Ünlü

Selma Ünlü, senior partner at NSN Law Firm, graduated from Istanbul University in 1989. She then obtained her diploma in private…

  • Partner
  • NSN
  • Turkey

Sheldon Hamilton

Sheldon Hamilton

For more than 20 years, Sheldon Hamilton has acted as counsel for many of the world’s most innovative companies in relation…

  • Partner
  • Smart & Biggar
  • Canada

Spring Chang

Spring Chang

Spring Chang is a founding partner at Chang Tsi & Partners, and is based in the firm’s Beijing office. She has more than two…

  • Founding partner
  • ChangTsi
  • China

Steven Garland

Steven Garland

With more than 25 years’ experience in intellectual property litigation, Steven Garland has represented a range of clients in…

  • Partner
  • Smart & Biggar
  • Canada

Sue Gilchrist

Sue Gilchrist

Sue Gilchrist is the head of the Herbert Smith Freehills intellectual property practice in Australia. She has extensive experience…

  • Head of IP
  • Herbert Smith Freehills
  • Australia

Vadim Mikhailyuk

Vadim Mikhailyuk

Vadim Mikhailyuk is a partner and head of the patent department at Mikhailyuk, Sorokolat & Partners. He is a registered Ukrainian…

Vivien Chan

Vivien Chan

Vivien Chan is the founding and senior partner of Vivien Chan & Co, and has more than 30 years of experience in M&A, China direct…

  • 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

Adam Alper

Adam Alper

Adam Alper is based in Kirkland & Ellis’s San Francisco office and works in the firm’s intellectual property litigation group.…

  • Partner
  • Kirkland & Ellis
  • United States

Adam Cooke

Adam Cooke

Adam Cooke joined DLA Piper UK in 2012 and has more than 25 years’ experience in intellectual property law. He focuses on multi-jurisdictional…

  • Partner
  • DLA Piper
  • United Kingdom

Adriano Vanzetti

Adriano Vanzetti

Adriano Vanzetti established Studio Legale Vanzetti e Associati in 1965 and has experience in all areas of intellectual property…

  • Owner
  • Studio Legale Vanzetti e Associati
  • Italy

Afamefuna Nwokedi

Afamefuna Nwokedi has worked in IP for over 27 years. He is the founder and principal partner of Stillwaters Law Firm, prior to…

  • Founding partner
  • Stillwaters Law Firm
  • Nigeria

Agustín Mayer West

Agustín Mayer West

Agustín Mayer West heads Ferrere’s regional intellectual property and life sciences teams. He is also involved in competition…

  • Head of IP, regional managing partner of the firm
  • Ferrere Abogados
  • Uruguay

Ai Ming Lee

Ai Ming Lee is a consultant at Singapore-based Rodyk & Davidson and works in the firm’s intellectual property and technology…

  • Consultant
  • Rodyk & Davidson
  • Singapore

Alan Adcock

Alan Adcock is a partner in Tilleke & Gibbins’ intellectual property and regulatory affairs groups. His practice focuses on…

  • Partner
  • Tilleke & Gibbins
  • Thailand

Alan Johnson

Alan Johnson

A patent litigator with experience in almost all areas of technology, Alan Johnson has carved a career spanning more than 35 years.…

  • Partner
  • Bristows
  • United Kingdom

Alan Potter

Alan Potter

Alan Potter is the co-founder of Potter IP and has experience in all areas of intellectual property law. He previously worked…

  • Co-founder
  • Potter IP
  • New Zealand

Alasdair Poore

Alasdair Poore is a partner at Mills & Reeve in the firm’s technology and commerce team. He has experience in patents, brand…

  • Partner
  • Mills & Reeve
  • United Kingdom

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