
Consistently sought out for international pharmaceutical companies’ disputes, Liad Whatstein & Co. Law Office is recognised by clients as the ‘best patent firm in Israel’. The team also has significant experience in the life sciences, defence, and communication technology sectors. Firm founder Liad Whatstein is ’universally considered as the go-to patent litigator in Israel’; patent expert Amira Mangelus is a highly-regarded life sciences litigator; and Matti Michel‘s track record includes high-stakes patent, copyright and trade secret cases. The practice further includes experienced IP litigators Oren Winer and Hila Oz-Meyer.
Legal 500 Editorial commentary
Accolades
Client satisfaction: Lawyer & team quality
Client satisfaction: Sector knowledge
Testimonials
Collated independently by Legal 500 research team.
- ‘Liad Whatstein is extremely knowledgeable about patent law. He is also passionate about the work he does, which is clear from the way he keeps track of relevant cases taking place in other jurisdictions.’
- ‘Liad Whatstein’s cross-examination of experts is extremely effective and his court performance is quite simply awe-inspiring and sheer pleasure for the party that hires him.’
- ‘Liad Whatstein, who leads the firm, is one of the best, if not the best, patent litigators worldwide.’
- ‘Liad Whatstein is very easy to work with. It is no surprise that Liad is universally considered as the go-to patent litigator in Israel by international clients.’
- ‘Liad Whatstein has an immense ability to grasp the most complex technical issues and explain them in simple terms.’
- ‘The team at Liad Whatstein & Co. are absolutely fantastic - they are bright, creative, and most importantly deliver outstanding results.’
Key clients
- Novartis
- Sanofi
- Merck & Co.
- Pfizer
- Bristol Myers Squibb
- Takeda
- Regeneron
- Abbott
- Bayer
- Astellas
- Alkermes
- UCB Pharma
Work highlights
Acting for Sanofi in litigation concerning allegations that Sanofi illegitimately delayed the generic launch of the drug Plavix.
Representing Pfizer and Astellas Pharma in oppositions by Teva relating to the drug Xtandi, a blockbuster drug for the treatment of prostate cancer.
Acting for major international spirits brands, such as Grey Goose, Belvedere, Finlandia and others, in an extensive campaign against a large operation of counterfeit spirits originating from ex-USSR Republics.
Lawyers
Hall of Fame
The lawyers at the very top of the profession, widely known and respected by peers and clients for their longstanding involvement in market-leading work.

Leading partners
The strongest partners in their field, leading on market-leading deals and endorsed by peers and clients alike.
Next Generation Partners
Junior partners with significant recognition from clients and peers in the market and key roles on multiple matters.
Practice head
Liad Whatstein; Amira Mangelus
Other key lawyers
Matti Michel; Oren Winer; Hila Oz-Meyer


