Mr Daniel Byrne > AA Thornton > London, England > Lawyer Profile

AA Thornton
Octagon Point
5 Cheapside

Work Department



Daniel Byrne is a partner and barrister with extensive experience in intellectual property disputes and transactions. He has spent many years dealing with complex and technical patent matters and he has experience of multijurisdictional litigation and coordination, particularly across Europe where he spent two years practising in Paris.

He has acted for clients across the full range of intellectual property rights at all levels of tribunal and has been a Deputy District Judge in the County Court since 2015. He also sits in the Intellectual Property Enterprise Court to hear, primarily, trade mark and copyright claims. He sits on the consulting editorial board for LEXIS-NEXIS IP and contributes to journals and academic programmes.


Dan was called to the bar in 2005 and qualified in specialist intellectual property chambers in London. 

He has, since 2007, worked in law firms, including over 5 years in the IP litigation department at Bristows in London and 2 years in the IP litigation department at Gide Loyrette Nouel in Paris.

He was appointed as a Deputy District Judge in 2015 and sits from time to time in the County Courts of London, including in the Intellectual Property Enterprise Court (small claims).

Dan joined AA Thornton as a partner in September 2019.


Inner Temple




  • BSc Molecular Biology and Biochemistry (with industrial placement) – Durham University
  • MA in Biotechnological Law and Ethics – Sheffield University
  • CPE – City University
  • Bar Vocational Course – BPP Law School
  • Barrister in England & Wales


Reading, travelling and learning new things

Lawyer Rankings

London > TMT (technology, media and telecoms) > Intellectual property: trade marks, copyright and design

Strong in prosecution, the IP offering at AA Thornton, which is headed up by Geoff Hussey, advises its clients on IP strategy and audits, portfolio management issues, rights ownership and licensing work, and due diligence across a broad spectrum of industries. Litigation is a strength for the team under Hussey’s leadership, with Daniel Byrne bolstering the firm’s litigation output, particularly in the telecoms, pharmaceuticals and biotech sectors.

London > TMT (technology, media and telecoms) > Intellectual property: patents (contentious and non-contentious)

Geoff Hussey leads the patents practice at AA Thornton, which is noted by clients as ‘a great team with true experts’. Fielding patent experts in the life sciences and cosmetic sectors, the team advises on IP strategy, due diligence in IP transactions and M&A, and licensing issues, and has particular expertise in relation to the Nagoya Protocol. Daniel Byrne is another key name to note.