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Chambers of Iain Purvis QC

Work 020 7405 1222
Fax 020 7242 4282

Michael Silverleaf QC

Work 020 7405 1222
11 South Square (Chambers of Iain Purvis QC)


Barrister in many leading intellectual property cases involving: patents, trade marks, passing off, copyright and related rights, registered and unregistered designs, computer disputes, breach of confidence, performers rights, entertainment and media law, restraint of trade, trade libel, trade descriptions, related areas of European and domestic competition law; practice in tribunals and courts at all levels up to the House of Lords and European Courts of Justice and the UK and European Patent Offices. Recent cases include:

Napp Pharmaceutical Holdings Ltd v Dr Reddy’s Laboratories (UK) Ltd and Sandoz Ltd [2016] EWHC 1517 (Pat) (patent infringement);

Richter Gedeon Vegyeszeti Gyar RT v Generics (UK) Ltd (t/a Mylan) [2016] EWCA Civ 410 (patent validity);

The Sofa Workshop Ltd v Sofaworks Ltd [2015] EWHC 1773 (IPEC) (trade mark infringment, passing off);

JW Spear v Zynga [2015] EWCA Civ 290 (trade mark infringement);

Starbucks v BSkyB (UKSC 2013/0274) (passing off);

Fresh Trading Ltd v Deepend Fresh Recovery Ltd [2015] EWHC 52 (copyright);

Interflora v M&S [2014] EWCA Civ 1403 (Google ad words);

Nokia v HTC (patent infringement, standards essential licensing) (2013-4, settled);

Confidential design arbitration, 32Red of [2013] EWHC 815 (Ch) (damages inquiry);

32Red Ltd v William Hill Gaming (UK) Ltd [2012] EWCA Civ 19 (trade marks);

Football DataCo v Sportradar [2013] EWCA Civ 27 (database right);

Samsung v Apple [2012] EWCA Civ 1339 (registered designs of tablet computers);

Schlumberger Holdings Ltd v Electromagnetic Geoservices AS [2010] RPC 33 (CA) (inventive step, validity, patents);

Abbott v Bayer (EPO anti-TNF alpha human monoclonal antibodies);

Newspaper Licensing Agency Ltd v Meltwater Holding BV [2011] RPC 7 (ChD), [2012] RPC 1 (CA) (copyright licensing schemes, literary works).


Trained Gray’s Inn, qualified 1980; QC 1996; junior counsel to the treasury in patent matters 1991-96; qualified as a mediator 2004 and practises actively in this field; appointed to Nominet DRS Expert Panel member 2008-12. Publications: ‘Passing Off Law and Practice’ (Butterworth’s 2nd ed 1995); also many articles in the legal press and papers delivered at professional conferences and seminars.




Intellectual Property Bar Association; Chancery Bar Association.


King’s College School, Wimbledon; Imperial College, London (1975 BSc Physics); Inns of Court School of Law.


Cycling, hockey, walking and reading.

London Bar

IT and telecoms (excluding regulatory)

Within: IT and telecoms (excluding regulatory) – Leading silks

Michael Silverleaf QC - 11 South SquareHe can be relied upon to challenge existing views on a case.

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Intellectual property

Within: Intellectual property – Leading silks

Michael Silverleaf QC - 11 South SquareHe is an excellent barrister and brings new and different areas of thought to cases.

Within: Intellectual property

The premier IP set’, 11 South Square, is ‘very strong in the field’, ‘reliable, and easy to get on with’. It boasts ‘top-class patent silks’ and has particular experience handling disputes in the technology and life sciences sector. Several members, including Michael Silverleaf QC and Kathryn Pickard, continue to be engaged in the Warner-Lambert Company LLC v Generics (UK) litigation, now before the Supreme Court. The chambers is also singled out for its ‘exemplary clerking service’.

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Media and entertainment (including art and cultural property)

Within: Media and entertainment – Leading silks

Michael Silverleaf QC - 11 South SquareHis advice is always sound and his seniority means it has real weight and authority.

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