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Marks & Clerk LLP

Marks & Clerk LLP


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Marks & Clerk is a well-established intellectual property firm with over 125 years’ experience, advising clients in protecting patents, trade marks, designs and copyright. Nationally, we are the UK’s largest firm of patent and trade mark attorneys but we also international presence with multiple offices outside the UK including in Asia and Canada.

We don’t just file patents and trade marks – we work proactively with innovative businesses like yours to identify your IP assets and provide strategic advice to achieve full commercial value. Our client list includes all types of businesses, from university spin-outs and start-ups through to major corporations, leading academic institutions, science parks and SMEs.

The strong scientific and technical backgrounds that our patent attorneys have complements their legal position when advising clients across the full spectrum of technologies including electronics, mechanical engineering, biotechnology and cleantech. Our international network of trade mark attorneys can provide you with advice across a wide range of sectors including academic and research institutions, science parks, electronics and gaming, food and beverage, fashion, sports, media and FMCG. Since 2010 our national and international attorney practice has been awarded the ISO 9001 certification for quality management systems, demonstrating our commitment to providing you with a consistently high level of service.

We are unique in having an associated consultancy firm, Marks & Clerk Consulting, and an associated legal firm, Marks & Clerk Solicitors, both of which enable us to offer a full range of IP services to clients. By working as a team, Marks & Clerk Consulting’s intellectual property legal and valuation experts offer robust valuations of businesses’ IP portfolios to assist you with licensing, sale and other ways to commercialise your IP. 

Marks & Clerk Solicitors is one of the UK’s leading intellectual property practices, with dispute and commercial expertise covering all aspects of patents, trade marks, domain and trade names, designs and copyright.

We are proud to be involved with many R&D-led businesses on science and technology parks across the UK, as well as university technology transfer, joint ventures and spin-outs. We aim to provide a valuable resource for you and other UKSPA members by working in local partnership with you to protect and exploit innovations in support of your business objectives. Our belief is that science and technology parks are pivotal for encouraging innovation and creativity in the UK