Mark Chacksfield KC

Mark is a highly regarded silk with an outstanding reputation in complex pharmaceutical, biopharmaceutical and telecoms patent actions, but also attracting a loyal following across the entire range of IP and media cases. He is praised for his deep understanding of the law, innovative and inventive mind, and his impressive work ethic.

Mark has a preeminent reputation in multijurisdictional FRAND litigation, having acted in all of the leading UK FRAND actions, including Unwired Planet v Huawei, Nokia v Oppo, InterDigital v Lenovo and Optis v Apple, as well as the jurisdictionally important pair of Kigen and Vestel. In the pharmaceutical/biopharmaceutical field Mark has litigated many of the world’s largest blockbuster products, including FKB v. AbbVie (adalimumab), Pfizer v Roche (bevacizumab), Actavis v Icos (tadalafil), Lilly v Genentech (IL-17A/F), and Hospira v. Genentech (trastuzumab).

Additionally Mark represents broadcasters, record companies, picture libraries and well-known personalities in copyright/privacy claims, as well as acting in musical copyright actions concerning substantial hits.

Born September 1974. Educated at Royal Grammar School, High Wycombe; Clare College, Cambridge University, BA (Double First) Natural Sciences (Zoology) Hurst Prize for Zoology. Called 1999, Middle Temple. Silk 2019.

IPBA, CBA