Experience in all types of contentious intellectual property work. He has a strong patent practice covering a wide variety of technology areas but with particular emphasis on chemical and pharmaceutical patents. Piers has been involved in numerous cases before all of the appropriate courts and tribunals as well as the European Patent Office. Recent cases include:

Illumina Cambridge Ltd v Latvia MGI Tech SIA & Ors [2021] EWHC 57 (Pat) - Patents Court, DNA sequencing technology.

Edwards Lifesciences Corporation & Anor v Meril GmbH & Anor [2020] EWHC 2562 (Pat) - Patents Court, transcatheter heart valves.

Akebia Therapeutics Inc v Fibrogen, Inc & Astellas [2020] EWHC 866 (Pat) - Patents Court, enzyme inhibitor to treat anaemia and related conditions.

Anan Kasei Co. Ltd & Anor v Molycorp Chemicals & Oxides (Europe) Ltd [2018] EWHC 843 (Pat) 

Fisher & Paykel Healthcare Ltd & Anor v ResMed Ltd & Anor [2017] EWHC 2748 (Ch)

Mylan v Richter Gedeon Vegyeszeti Gyar [2016] EWCA Civ 410 – Court of Appeal, patent revocation, emergency contraception;

Generics (UK) Limited t/a Mylan v Warner-Lambert Company LLC [2015] EWHC 2548 (Pat)

International Stem Cell Corp v Comptroller General C-364/13 [2014] – CJEU, patentability of methods of producing stem cells;

Smith & Nephew Plc v Convatec Technologies Inc [2015] EWCA Civ 607

Idenix Pharma v Gilead Sciences Inc [2014] EWHC 3916 (Pat) – Patents Court, patent infringement and validity, Hepatitis C treatment;

Scopema v Scot Seat [2014] EWCA Civ 187 – Court of Appeal, Construction and infringement in relation to a patent for seat brackets;

Seitz v KHS [2014] EWHC 14 – Patents Court, patent revocation and declaration of non-infringement, valves used in rotary stretch blow moulding machines;

Mylan v GSK [2013] EWHC 148 – Patents Court, patent revocation, anti-malarial;

Convatec v Smith & Nephew [2012] EWHC 1638 – Court of Appeal, wound dressings;

BMW v Round & Metal [2012] EWHC 2099 – Patents Court, Community designs for alloy wheels;

Mylan v Yeda [2013] EWCA Civ 925 – Court of Appeal, patents for copolymer-1, validity and infringement;

Teva v AstraZeneca [2013] EWCA Civ 454 – Court of Appeal, patent for schizophrenia treatments, revocation;

Bayer v Norbrook – EPO, pharmaceutical patents, revocation;

Pro-Tec Covers Ltd v Specialised Covers Ltd [2011] EWPCC 023 – Patents County Court, unregistered design right, infringement;

Blinx v Blinkbox [2010] – trade mark infringement, interim injunction.

University College London (1984-87 BSc Biochemistry First Class Hons); Imperial Cancer Research Fund (1987-91 PhD Molecular Virology); College of Law (1991-92 Common Professional Examination); Inns of Court School of Law (1992-93 Bar vocational course). Mansfield scholar (Lincoln’s Inn 1991-92); Denning Scholar (Lincoln’s Inn 1992-93).