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Quick facts
Established

1887

Number of Partners

55

Number of IP Practitioners

144

Languages

French, German, Spanish, Chinese, Japanese, Italian

Network Memberships

BIA, LSX, One Nucleus, Cambridge Wireless, Tech UK, Immerse UK, UT, FBCC, ADS, MIA, INTA

Key practice areas
Copyright & related rights
Intellectual property
Trade mark
Patent
Patent prosecution
Trade mark prosecution
Firm overview

Marks & Clerk is one of the UK’s largest, and longest established, intellectual property firms. Our expert teams of patent and trade mark attorneys and lawyers are wired directly into the UK’s innovation economies via our offices in London, Birmingham, Manchester, Oxford, Cambridge, Edinburgh, Glasgow and Aberdeen. Alongside our presence in the UK, we also have offices in nine international locations covering the EU, Canada and Asia, meaning we can tap into local expertise, globally. 

Our team provides a full-service IP offering, from the initial filing of IP, through to litigation and commercial exploitation. Having seen the benefits that our clients derive from our full-service model, a number of patent attorney firms have since sought to follow a similar approach by adding solicitors to their teams. However, our well-established and highly regarded litigation and commercial transactions practices continue to set us apart from other firms.

We are experts not only in intellectual property law, but also in the science and technology that underpins our clients’ businesses. Our ability to draw upon this specialist technical expertise, not just in the context of patent prosecution but also in the context of litigation and commercial transactions, enables us to provide clients with a level of service and reach unmatched by other firms.

 

Practice Areas & Sector Specialisations

Practice Areas: Copyright, Designs, IP transactions, Life sciences, Patent contentious, Patent litigation, Patent office proceedings, Patent prosecution, Patent strategy & counseling, Trade mark contentious, Trade mark litigation, Trade mark office proceedings, Trade mark prosecution, Trade mark strategy & counseling

Sector Expertise: Aerospace & defence, Agriculture, Artificial intelligence, Automotive, Biotechnology, Chemistry, Computer technology & services, E-commerce, Electrical, Electronics, Fashion & luxury goods, FMCG, Food & beverage, Gaming, Healthcare, ICT & software, Industrials, Instruments, Internet, Life sciences, Manufacturing, Mechanical, Medical device, Mining, Nanotechnology, Oil & gas, Optics & photonics, Pharmaceutical, Renewable energy, Retail, Robotics, Semiconductors, Technology hardware, Telecommunication, Universities & research

Address:
Level 9, Cyberport 1 100 Cyberport Road
Pok Fu Lam
Tel:+852 2526 6345 Email:Contact Us Web Address:https://www.marks-clerk.com/
2026 Edition
Patent prosecution
Tier 1
8 firms ranked
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Tier 1

Bird & Bird
10 practice areas
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Deacons
12 practice areas
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Eagle IP
4 practice areas
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Marks & Clerk
6 practice areas
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Tier 2

Spruson & Ferguson
3 practice areas
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Tier 3

Vivien Chan & Co
12 practice areas
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Wilkinson & Grist
9 practice areas
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Tier 2

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Tier 3

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Overview

Marks & Clerk is one of the UK’s largest and longest-established intellectual property firms. The firm provides a full-service IP offering, from the initial filing of IP through to litigation and commercial exploitation. 

Notable patent practitioners: Eric CF Lam, Monique Chu and Zephyr Su. 

Notable soft IP practitioner: Lily Pun. 

 
 
 
Testimonials

2026

"We appreciate the extraordinary experience, high level of professionalism, and absolute reliability with which this long-established law firm of Marks & Clerk provides its trademark services. The quality and responsiveness of their work is outstanding. Their prices are moderate, and they adhere strictly to their cost. We also appreciate their friendly cooperation."

Lily Pun

"Ms. Lily Pun is an extremely experienced trademark lawyer who provides her services with the utmost care and enormous expertise. You can always rely on her completely. Even after almost twenty years of working together, we cannot find any weaknesses in her. We can warmly recommend her."

 

Linked Reviews
Patent
 

Case studies show the firm assists Warner Norcross & Judd with UK and Chinese patent applications for US-based clients, providing strategic advice on claim amendments, the Patent Prosecution Highway, local practice compliance, and maximising patent scope across jurisdictions with differing patent laws. Clients include CITIC Telecom International and Foris. 

Trade mark
 

The firm managed various global clients’ trade mark portfolios in Hong Kong for over a decade, which has allowed Marks & Clerk to effectively protect clients’ brand identities and support their presence in the region. 

2 results2 results
With patent filings stagnant, fewer clients litigating and market consolidation at play, Canadian firms are considering how to challenge the established players
The latest in a dispute over juicing machines, and a shakeup in judicial compositions were also among the top developments
Paul Chapman and Robert Lind, who are retiring from Marks & Clerk after 30-year careers, discuss workplace loyalty, client care, and why we should be optimistic but cautious about AI
Consultation feedback on mediation and arbitration rules and hires for Marks & Clerk and Heuking were also among the major talking points
In the second instalment of our data-led special reports, Managing IP speaks to the most prolific representatives for REUDs on how they manage their team and filing strategies
Developments included an update in the VAR dispute between Ballinno and UEFA, the latest CMS updates, and a swathe of market moves
A ruling concerning a juicing machine, a tussle over a preliminary injunction and a new judge in Paris were among the top talking points this fortnight
A settlement between SharkNinja and Dyson, a costs dispute involving a pornography company, and people moves at Clifford Chance and Casalonga were among the top talking points
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