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J A Kemp

Ranked in tier 1 by The Legal 500 and Chambers and Partners, we are one of the largest UK and European Patent and Trade Mark Attorney firms, with offices in London, Oxford, Cambridge, Paris and Munich. Established in the 1940s by our founder, John Arthur Kemp, we have grown to become one of a handful of leading UK firms with a strong international practice.

On 1 October 2019 the firm became a Limited Liability Partnership. On this date, J A Kemp’s business, contracts and client monies were all transferred to J A Kemp LLP.

The breadth and depth of our technical knowledge relevant to patents is outstanding, with over 80 science and technology graduates in the firm including over 40 PhDs. No area of science or technology is outside our scope.

Our trade marks team comprises senior professionals with backgrounds in major international law firms. The team has the expertise and resources to handle any trade marks matter.

Connect with us


  • London

    14 South Square, Gray's Inn, London WC1R 5JJ, United Kingdom
    Phone 44 20 3077 8600
    Fax 44 20 7430 1000
  • Cambridge

    CPC2 Building, Capital Park, Cambridge CB21 5XE, United Kingdom
  • Oxford

    Northbrook House, The Oxford Science Park, Oxford OX4 4GA, United Kingdom
    Phone 44 1865 406 100
    Fax 44 1865 406 101

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