80 Turnmill Street
United Kingdom (England)

Tel:+44 (0) 203 077 8600

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Key contacts:

Chair of the Management Committee: John Leeming
Senior Partner and Head of the Engineering and IT Group: Nigel Price
Head of the Chemistry and Pharmaceuticals Group: Amanda Simons
Head of the Biotechnology and Life Sciences Group: Patrick Campbell
Head of the Trade Marks and Designs Group: James Fish

Quick facts:

Established: 1947
Number of Partners: 43
Number of Practitioners: 112

J A Kemp is one of the largest European patent and trade mark attorney firms, with offices in London, Oxford, Cambridge, Paris and Munich. 

The firm prides itself on a pragmatic and strategic approach across all practice areas, supporting its clients’ changing needs at every stage of a project. Drafting; prosecution; opposition and litigation; non-contentious transactions and agreements; searching and assessment of validity / FTO; as well as global portfolio management:  all are handled in-house with the utmost professionalism and attention to detail. J A Kemp attorneys routinely leverage their expertise and experience to propose creative solutions to complex problems in all areas - helping their clients’ businesses to grow.

The firm works for a huge variety of direct domestic (UK and European) and international clients, ranging from startups, spinouts and growing businesses through to some of the largest corporations and most prestigious academic institutions in the world. Attorney firms in the USA, Japan, China and the Republic of Korea also routinely instruct J A Kemp on behalf of their clients, happy to rely on the firm’s unparalleled ability to secure intellectual property protection within Europe and elsewhere.

J A Kemp’s patents team is rightly famed for the breadth and depth of its technical expertise in every area of science and technology, boasting over 80 science and technology graduates, including over 45 PhDs. Drawing from three broad client service groups focused on biotechnology and life sciences, chemistry and pharmaceuticals, and engineering and IT, the firm is adept at assembling cross-disciplinary teams to handle complex inventions which sit across technological boundaries. Areas of particular expertise include antibodies and biologics, bioinformatics, chemistry, cleantech, diagnostics and personalised medicine, electronics and electrical technology, engineering, IT and software, manufacturing, materials and metallurgy, medical devices and technology, microbiology and the microbiome, optics, pharmaceuticals, plant science and agriculture, polymers, regenerative medicine, semiconductors, vaccines and immunology.  J A Kemp has a well-deserved reputation for excellence in patent oppositions and appeals before the European Patent Office, and a specialist team handling supplementary protection certificates (SPCs) across Europe.

The senior professionals leading J A Kemp’s dedicated trade marks team are drawn from major international law firms. The team has the expertise and resources to handle any trade mark matter, with particular expertise in the registration of unusual or otherwise difficult marks, including shape marks and marks that require evidence of acquired distinctiveness. J A Kemp’s trade mark attorneys are experienced in dispute resolution and opposition and related enforcement issues. The firm also offers a range of specialist services to protect clients’ brands online, including domain name monitoring, portfolio rationalisation, domain name disputes, anti-phishing and impersonation, website and social media takedowns, as well as handling all aspects of design protection in the UK, Europe and the rest of the world. 

J A Kemp provides support for contentious intellectual property matters in the High Court of England and Wales, the Intellectual Property Enterprise Court, the UK Intellectual Property Office, the European Patent Office and European Union Intellectual Property Office (EUIPO), plus their respective appeal courts. The IP Litigation and Dispute Resolution Support Group combines in-depth knowledge of patents, trade marks and designs. The Group consists of qualified solicitors, patent and trade mark attorney litigators who provide support services in order to achieve successful outcomes for the firm’s clients.

J A Kemp is a client-focused and commercially aware firm with the breadth and depth of expertise to handle any intellectual property matter.


Network Memberships: AIPPI, BIA, CIPA, CITMA, ECTA, EPI, FICPI, IET, IME, INTA, IPSoc, Law Society, Marques, MBC, OBN, One Nucleus, SCL, TIPLO

Key Practice Areas: Designs, Life sciences, Patent contentious, Patent litigation, Patent prosecution, Patent strategy & counseling, Trade mark contentious, Trade mark litigation, Trade mark prosecution, Trade mark strategy & counseling

Key Sector Expertise: Aerospace & defence, Agriculture, Artificial intelligence, Automotive, Biotechnology, Chemistry, Computer technology & services, Construction & materials, Electronics, Fashion & luxury goods, Food & beverage, Furniture, Healthcare, Instruments, Life sciences, Manufacturing, Mechanical, Medical device, Nanotechnology, Oil & gas, Optics & photonics, Pharmaceutical, Renewable energy, Technology hardware, Telecommunication, Universities & research, Semiconductors, Robotics


Last updated 11 January 2022