JUNIOR PROFILE

William Duncan

UK Bar 2026

8 New Square

Ranked in 1 practice area

Intellectual Property

London (Bar)

9 years ranked

About

Provided by 8 New Square

Practice Areas

Intellectual Property

Patents

FRAND

Life sciences

Career

William is a specialist patent barrister with key expertise in handling patent litigation in both the life sciences and telecommunications sectors, with particular specialism in biotechnology and FRAND disputes.

William has broad experience of biotechnological patent disputes from small molecules (e.g. Gilead v Idenix, Gilead v Nucana, Accord v RCT, Aspire v Alcon) to proteins/antibodies (e.g. Regeneron and Bayer v Amgen and others, Eli Lilly v Genentech, Takeda v Hoffman La Roche). William’s biochemistry background has provided a strong footing for this practice in biotechnological patents, where he has particular experience of litigating technically complex major patent disputes often with multi-jurisdictional issues.

He has also been involved in a significant number the major FRAND disputes which have occurred in the UK Courts including Philips v ASUS, Philips v TCL, Mitsubishi and Sisvel v Oneplus and others, Lenovo v Interdigital (both in the High Court and on appeal), Philips v OPPO and Panasonic v OPPO.

Professional Memberships

IPBA

ChBA

Chambers Review

Provided by Chambers

UK Bar

Intellectual Property - London (Bar)

Band 3

Individual Editorial

William Duncan is an able and experienced barrister who elicits praise from instructing solicitors for his work ethic and the quality of his written submissions and advice. He is adept at handling patent litigation in both the telecommunications and life sciences sectors, and commentators remark upon his burgeoning practice in the area of biotechnology in particular. He has also garnered considerable recognition for his FRAND practice.

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Strengths

Provided by Chambers

William is a barrister who can quickly identify the core of complex material and build clear, well-reasoned arguments. He has the ability to bring structure and clarity to challenging cases.
Intellectual PropertyUK Bar
William is good to work with. He is an independent thinker.
Intellectual PropertyUK Bar