The Legal 500

Twitter Logo Youtube Circle Icon LinkedIn Icon

Mathys & Squire LLP

Work 020 7830 0000
Fax 020 7830 0001

Chris Hamer

Work 020 7830 0000
Mathys & Squire LLP

Work Department



Chris is the head of the Chemistry Group, with particular expertise in oil and petrochemical technologies, catalytic processes, polymers and composite materials, food chemistry, natural food supplements and absorbent articles. He is also involved in protecting inventions in the environmental sector, including solar cells, biofuels, biochemicals and green solvents. He is one of the world's leading attorneys in the field of ionic liquid technologies and represents clients in four continents. His practice areas include drafting and prosecution of global patent families, opposition and appeal proceedings before the European Patent Office where he has significant experience and a successful track record having acted for international companies such as BP, Petroliam Nasional Berhad, AarhusKarlshamn, Borealis, Sasol, Toray, Ineos, Novartis, and the QUILL Research Centre, as well as strategic planning and freedom-to-operate advice, mediation and litigation (QinetiQ v. GeoDynamics, Tech21, v. Design Blue Ltd, GeoDynamics US, DynaEnergetics). Chris is highly regarded for his pragmatic commercial expertise, which has helped his clients to grow from small SMEs to valuations of in excess of £300 million.  He is also actively involved in advising on Petronas’s highly acclaimed mercury removal processes, and their recently award winning oil deacidification technology.


Chris has an Honours Degree in chemistry from Bristol University. He qualified as a Chartered and European Patent Attorney in 2002. Before joining Mathys & Squire in 2004, he spent two years working for a German firm of patent attorneys in Munich. Chris became a Partner in 2006.


Chartered Patent Attorney; European Patent Attorney; and European Design Attorney.


Bristol University (BA (Hons) Chemistry).

London: TMT (technology, media and telecoms)

PATMA: Patent attorneys

Within: PATMA: Patent attorneys

Mathys & Squire LLP 'really stands out from the crowd' thanks to an engineering, IT and electronics team whose advice is 'extremely technical due to its prior engineering degrees' and which has 'an impeccable understanding of IP law', and a life sciences and chemistry team that possesses 'strong scientific knowledge combined with comprehensive knowledge of European patent law'. Key figures from the engineering, IT and electronics team include Ilya Kazi, who advised Abbott Diabetes Care on the management of its patent portfolio. Sean Leach assisted Sevcon with the due diligence of its patent portfolio as part of its $200m sale to Borg Warner. Dani Kramer has 'the ability to draft clear, actionable and commercially relevant patent claims'. Paul Cozens, Alan MacDougall, Jane Clark and Catherine Booth are also recommended. On the life sciences and chemistry team, Martin MacLean is 'very sharp' and 'has a deep understanding of the law and the procedures at the EPO'. Chris Hamer is 'an outstanding lawyer' thanks to his 'combination of industry knowledge and attention to detail'. David Miller has been managing the patent portfolio of EngMab, which is new subsidiary of Celgene. Monika Rai,  Philippa Griffin, Toby Simpson and James Wilding are other noteworthy names on the team.

[back to top]

Back to index

Legal Developments in London

Legal Developments and updates from the leading lawyers in each jurisdiction. To contribute, send an email request to