Advertising & Marketing
United Kingdom
19 September 2025
Providing services in filing and prosecution, transaction assistance, and litigation advice related to the full suite of IP rights, Lewis Silkin houses a team led by Tom Gaunt, whose remit spans patent litigation in the mechanical, electrical, and software spaces. The practice’s diverse client base includes a notable number of APAC-based companies. The group includes patent attorney and litigator Andy Cloughley, and Paul Williams, who handles instructions related to chemicals, life sciences products, and mechanical patents, including opposition, infringement, and validity work. Jonathan Hewett specialises in electronics and engineering patents.
Legal 500 Editorial commentary
Testimonials
Collated independently by Legal 500 research team.
‘Lewis Silkin has a team of experts covering all aspects regarding IP and patent matters. We don't need to worry about anything and things are handled well.’
‘Paul Williams is the patent attorney who has been assisting us with a patent filing and other patent related issues incurred during the time. He is very organised and thus things have gone smoothly. Throughout, we have been clear about the procedures & timelines and provided with detailed information required for decision-making.’
‘The Lewis Silkin team have been very helpful and supportive with our patent applications. They keep on top of the timings and everything is kept in order. They are a pleasure to work with.’
‘Paul Williams is an exceptional person, excellent to work with, very supportive. His knowledge is deep and he has excellent communication skills, allowing us to get the best coverage for patents.'
‘A team of experienced attorneys that come up with innovative strategies quickly. They are always happy to tackle the most difficult issues across multiple jurisdictions.’
‘Very easy to work with. Always respond in a timely manner. They explain complex legal issues simply and directly.’
‘Paul Williams is an outstanding individual who manages to combine a deep intellectual understanding of his craft with kindness, patience, and a customer focus beyond comparison. His ability to quickly absorb alien and complex concepts and then draft them into simple, logical and understandable patent language is truly extraordinary.’
'Lewis Silkin’s IP patents practice distinguishes itself through a combination of deep technical expertise, strategic foresight, and highly personalised client service. What sets the team apart is their ability to seamlessly bridge the gap between complex legal frameworks and commercially grounded advice.'
'Paul Williams brings a rare combination of technical patent insight and strategic litigation acumen. Their ability to anticipate potential legal and commercial implications and advise accordingly has been consistently impressive.'
'Lewis Silkin’s Intellectual Property practice stands out for its comprehensive, client-focused approach and technical excellence.'
Key clients
- Aptiv Technologies Limited
- Ørsted Wind Power A/S
- Sentcell Limited
- TDK Lambda
- Seiko Epson Corporation
- Ichikoh Industries Ltd
- Graco Minnesota Inc
- Britvic Soft Drinks Limited
- Janssen Pharmaceutica NV
- Wesco International
- Medline
- Kokusai Co.
Work highlights
Assisting a childcare products company with the transfer and rationalisation of a patent portfolio following its acquisition.
Providing Britvic with competitor analysis and strategic advice to map out a series of patent filings and guide future research into a variety of technical streams associated with the patent filings.
Advising Bridea Medical BV and Bridea IP BV in relation to a dispute concerning the infringement of the client’s patent by UK-based Vernacare and its subsidiary company Robinson Healthcare’s speculum product.
Practice head
Tom Gaunt
Other key lawyers
Andy Cloughley; Paul Williams; Jonathan Hewett