Mark Chacksfield KC > 8 New Square Intellectual Property > London, England > Lawyer Profile

8 New Square Intellectual Property
8 New Square


Barrister specialising in all areas of intellectual property law, with particular expertise in pharmaceutical, biopharmaceutical and telecoms patent litigation.  Please see website entry at for recent cases.


Called 1999, Middle Temple.


IPBA; Chancery Bar Association.


Royal Grammar School, High Wycombe; Clare College, Cambridge; College of Law, York; Inns of Court Law School.


Running, modern pentathlon, the environment, travel, good food and music.

Lawyer Rankings

London Bar > IT and telecoms (infrastructure and contracts)

(Leading Silks)Ranked: Tier 4

Mark Chacksfield KC8 New Square

With a ‘good range of barristers‘, intellectual property-led set 8 New Square specializes in work relating to FRAND licensing, with further expertise in telecoms disputes and liability of internet intermediaries. In InterDigital Technology Corp v Lenovo Group Ltd, Mark Chacksfield KC acted on behalf of the claimant, going up against Daniel Alexander KC in a high-profile FRAND dispute focused on the essentiality and validity of a patent in connection with a non-contention based control channel. Jaani Riordan is acting for the defendant in Philips v Xiaomi, an ongoing dispute concerning Philips’ SEP portfolio, focused on determining the correct approach to global FRAND portfolio licenses and questioning a defence based on ETSI licenses under foreign law.

London Bar > Intellectual property

(Leading Silks)Ranked: Tier 4

Mark Chacksfield KC8 New Square