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Linklaters Business Services

Living Wage
Work 020 7456 2000
Fax 020 7456 2222
Abu Dhabi, Amsterdam, Antwerp, Bangkok, Beijing, Berlin and 25 more

Yohan Liyanage

Work +442074564623
Linklaters Business Services

Work Department

Intellectual property


Advises on a broad range of contentious and non-contentious IP projects, including UK and multi-jurisdictional patent litigation, IP licences and commercialisation arrangements, and the IP aspects of cross-border M&A, joint ventures and IPOs.


Trained at Linklaters; Associate Linklaters 2003-2007; Associate Taylor Wessing 2007-2010; Managing Associate Linklaters 2010-2012; Counsel 2012-2017; Partner in 2017.


AIPPI UK; member of the editorial board of BioScience Law Review.


Corpus Christi College, Cambridge (BA (Hons) First Class Biochemistry); Magdalen College, Oxford (D. Phil. Neuroscience).


Music; travel.

London: TMT (technology, media and telecoms)

Intellectual property

Within: Intellectual property

The 'extremely clever and pragmatic' intellectual property team at Linklaters LLP offer 'very good value' across contentious, non-contentious and transactional IP advice. The team was instructed by Schneider Electric to advise of intellectual property aspects of the company's reverse takeover of AVEVA Group plc. This included transitional trade mark licences to allow the incorporation of Schneider’s software business into AVEVA’s group, in addition to arranging cross-licensing agreements to allow Schneider’s retained business and the divested software business to continue use of certain shared rights. The also has significant patent litigation experience and, with recently promoted partner Yohan Liyanage taking the lead, a team is representing Sanofi group and Regeneron Pharmaceuticals Inc in co-ordination of a global patent dispute regarding medical treatments that reduce cardiovascular disease against Amgen. The group is also defending this client in a patent claim, also against Amgen, relating to cholesterol-lowering therapies. In another contentious matter, the department is acting for acting for Merck & Co in defending a high-profile claim for trade mark infringement and breach of a 1970 contract by Merck.  Ian Karet heads up the team which also includes the 'intellectually rigorous' Nemone Franks and Nigel Jones . William Hill, Just Eat Plc and Unilever are all clients.

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Pharmaceuticals and biotechnology

Within: Pharmaceuticals and biotechnology

Linklaters LLP's practice is divided into competition, corporate and TMT-related work, with Aisling Zarraga and Marly Didizian at the fore. Zarraga heads the corporate team and other key members include James Inglis and Matthew Bland. Didizian works at the helm of the TMT team with other notable names such as Ian Karet, Nigel Jones and Yohan Liyanage. Liyanage defended Regeneron and Sanofi in an appeal regarding the sale of the cholesterol drug Praluent due to patent infringement. Karet is acting for Merck & Co in its trade mark dispute with Merck KGaA regarding the Merck name. Key members of the competition team include Nicole Kar and Sir Christopher Bellamy.

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