Chambers and Partners 2025
The Set
11 South Square offers great depth of expertise in IT and telecoms-related intellectual property matters, and is consistently recognised as one of the top IP chambers. Its tenants are sought out by major technology companies and corporate clients for some of their most substantial patent disputes, and barristers from the set have excellent knowledge of FRAND licensing matters. Recent highlights include the representation of LzLabs against IBM in the High Court. IBM accused LzLabs of intellectual property infringement and claimed that the company wanted to steal and copy trade secrets.
Client Service
“A set you can trust and one that has a very responsive clerking team.”
Legal 500 2025
The Set
11 South Square offers strong expertise in information technology disputes, especially those which intersect with the related area of IP law. Mark Vanhegan KC, who is regularly sought after by global tech and telecoms companies, continued to act for the defendant in IBM v LzLabs; with the complex dispute regarding alleged software reverse-engineering culminating in a 6-week trial before the High Court in April 2024. Brian Nicholson is adept at handling IP disputes with a substantial electronic and computing element.
Chambers and Partners 2024
The Set
11 South Square offers great depth of expertise in IT and telecoms-related intellectual property matters, and is consistently recognised as one of the top IP chambers. Its tenants are sought out by major technology companies and corporate clients for some of their most substantial patent disputes, and barristers from the set have excellent knowledge of FRAND licensing matters. For example, 11 South Square recently appeared for Apple in Unwired Planet, Optis and PanOptis v Apple, a high-profile Patents Court litigation.
Client service
“The clerks are very responsive and practical.”
Legal 500 2024
The Set
Members at 11 South Square have extensive experience in high-level technology disputes and are frequently instructed to act in disputes at the intersection of IP and IT law. With a combination of decades of experience in the field and technical backgrounds, members are particularly well-placed to handle complex disputes acting for high-profile technology clients. Mark Vanhegan KC appeared for LzLabs in IBM UK Limited v LzLabs, a dispute relating to alleged breaches of agreements pertaining to mainframe computer systems and raising issues about software copyright and reverse engineering.
Testimonials
‘Excellent’
‘One of the top IP chambers. Always on my list of ones to look to for high quality advocates.’