Leaders Directory

WIPR Leaders is a one-stop guide to the leading IP practitioners in the world. The handbook lists over 2,500 lawyers across patent, trademark, and copyright practices. Following an extensive nomination period, our research team vetted the nominated lawyers 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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Abhilasha Niroola

Abhilasha Niroola

Abhilasha Niroola is an attorney-at-law in India registered with the All India Bar Association and brings an experience of nearly…

  • Attorney
  • Mehta & Mehta Associates (MehtaIP)
  • India

Ai-Leen Lim

Ai-Leen Lim

Ai-Leen Lim leads AWA Asia‚Äôs offices as chief executive officer and principal counsel, managing its headquarters in Hong…

  • Chief Executive Officer & Principal Counsel
  • AWA Asia Ltd
  • China

Almar Sehver

Almar Sehver
  • Partner / Trademark Attorney & Lawyer
  • AAA Legal Services
  • Estonia

Anette Rasmussen

Anette Rasmussen

Anette Rasmussen is a partner and attorney at law. She began her career in IP law in 1998 as an examiner at the Norwegian Patent…

  • Partner Attorney & Team Manager
  • AWA
  • Denmark

Ashley Zhao

Ashley Zhao

Ashley has been practicing Chinese IP law since 2005 and was admitted to the PRC Bar in 2008. She is regularly involved in both…

  • Partner
  • AWA Asia Ltd
  • China

Bill Lister

Bill Lister

Bill Lister has a wide range of experience advising UK, US, European and global clients, with a substantial reputation spanning…

Cameron S. Reuber

Cameron S. Reuber

Cameron Reuber co-chairs the litigation practice group at Leason Ellis. He trains and oversees dozens of professionals proficient…

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,…

David Leason

David Leason

David Leason is the managing partner at Leason Ellis and has an extensive practice that focuses on patent prosecution and counseling.…

Douglas Campbell

  • Clerk
  • 3 New Square Intellectual Property
  • UK

Elizabeth Barnhard

Elizabeth Barnhard

Elizabeth Barnhard chairs the pharma/biotech practice group at Leason Ellis. She is an astute risk manager, a percipient counselor…

Eran Soroker

Eran Soroker
  • Founding partner and Leader in Israel
  • Soroker Agmon Nordman
  • Israel

Essenese Obhan

Essenese Obhan

Essenese Obhan is a managing partner at Obhan & Associates. Mr Obhan is an IP lawyer, patent agent, and has a degree in mechanical…

  • Managing Partner Patent Attorney
  • Obhan & Associates
  • India

Haiyu Li

Haiyu Li

Ms. Haiyu Li passed the Chinese bar in 2009 and obtained the lawyer's license in 2013. Before joining Chofn in 2013, Ms. Li worked…

Jia Li

Jia Li

Ms. Jia Li is a trademark attorney and partner of Chofn IP. She has considerable experience in trademark prosecution matters.…

Juan Carlos Amaro

Juan Carlos Amaro

Juan Carlos Amaro is an attorney-at-law with a postgraduate degree in Constitutional Law and IP law at the Universidad Panamericana.

Madhu Rewari

Madhu Rewari

Madhu has carved a niche in the field of trademark prosecution having represented numerous leading Indian companies and multinationals,…

  • Partner- Trade Marks
  • Anand & Anand
  • India

Mark Steiner

  • Partner
  • Duane Morris LLP
  • United States

Matthew L. Frisbee

Matthew L. Frisbee

Matt Frisbee is a key piece of the firm's trademark portfolio management and counseling practice, overseeing the domestic and…

Özlem Fütman

Özlem Fütman

Ozlem Futman has broad experience in effectively managing IP portfolios for some of the most recognisable national and international…

  • Founding Partner
  • Ofo Ventura
  • Turkey

Peter McAndrews

Peter McAndrews

Peter McAndrews is a patent and trademark attorney, specialising in litigation and US Patent and Trademark Office proceedings.…

  • Shareholder
  • McAndrews Held & Malloy Ltd
  • United States

Peter S. Sloane

Peter S. Sloane

Peter Sloane co-chairs the Trademark and Copyright Practice Group at Leason Ellis, where he and his team handle all aspects of…

Rahul Chaudhry

Rahul Chaudhry

Mr. Chaudry is among one of the most "pre-eminent names" in Intellectual Property Laws in India and Managing partner of the leading…

Safir Anand

Safir Anand

Accredited as one of India’s Top IP Attorney, Safir Anand is a Senior Partner & Head of Trademarks, Commercial &…

  • Senior Partner and Head of Department
  • Anand & Anand
  • India

Sudeep Chatterjee

Sudeep Chatterjee

Sudeep Chatterjee joined Singh & Singh in 2005 as an associate. In 2012, when the firm was restructured into an LLP, he became…

  • Partner
  • Singh & Singh Law Firm LLP
  • India

Tomoko Iwai

  • Executive Vice President
  • SAEGUSA & Partners
  • Japan

Vaishali Mittal

Vaishali Mittal

Vaishali Mittal is a zealous IP practitioner taking head-on some of the most challenging legal battles and have turned some of…

  • Partner Litigation and Strategist
  • Anand & Anand
  • India

Yuval H. Marcus

Yuval H. Marcus

Yuval Marcus co-chairs the litigation practice group at Leason Ellis, where he and his team litigate IP disputes in federal district…

Zhanqing Tang

Zhanqing Tang

Ms. Zhanqing Tang joined Chofn IP as a Trademark Attorney in 2013 after graduation. Ms. Tang is currently an attorney at law and…

Alejandra Fabiana Aoun

Alejandra Fabiana Aoun
  • Director, is a Lawyer, Consultant in Intellectual Property and Industrial Property Agent.
  • Estudio Aoun
  • Argentina

Alex Butterman

  • Partner
  • Dunlap Bennett & Ludwig
  • United States

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