• Office
  • 1 Amphora Place
  • Sheepen Road
  • Colchester
  • Essex
  • CO3 3WG
  • Tel: 01206 217300

Jonathan Perlmutter

Partner, Head of Intellectual Property

As Head of Intellectual Property, I have a broad-based, highly international practice encompassing patents, trade marks, designs, copyright and associated transactions.

My work includes elements of cryptocurrency technology, blockchain, fintech, insurtech and agritech, as well as more conventional mechanical and electrical engineering work, including medical devices work in particular. We are currently representing patent clients in about 180 countries across the world.

In trade mark terms, my specialisation is leveraging my international network in order to efficiently undertake large international filings for expanding companies and growing brands. We are currently representing clients in about 150 countries across the world.

Through our international office and staff, we are able to continue to represent clients in front of the EPO and the EUIPO, an ability that many smaller firms have lost as a result of the UK leaving the European Union.

I act for a large multi-national software company, an established international retail chain, a medical devices PLC and a variety of well-known brands including restaurants, toys and food stores. I have advised the defence industry and have a Ministry of Defence security clearance.

During my legal studies, I was awarded the James Bushell memorial scholarship and the Hardwicke award by Lincoln’s Inn. I have a first class degree and was called to the Bar in 2006 (although I do not practice as a barrister), and am a UK Chartered Trade Mark Attorney as well as a European Trade Mark and Design Attorney. I am a member of the International Association for the Protection of Intellectual Property.

I regularly provide talks at universities and technology organisations, including UCL/IDEALondon, Norwich University of the Arts, Centrum, Cocoon Networks, the WeWork organisation and Somerset House.


  • First class degree
  • Barrister
  • UK Chartered trade mark attorney
  • European trade mark attorney
  • European design attorney
  • Member of International Association for the Protection of Intellectual Property
  • Member of Chartered Institute of Trade Mark Attorneys (CITMA)

The Legal 500 – The Clients Guide to Law Firms

What our clients say

  • Many thanks for your excellent service and thoroughness throughout the process. We will be more than happy to use your services in the future.
  • The IP team at Birkett Long LLP is very well suited to help us with all of our Intellectual Property needs. They are able to give us advice on specific trade marks which we try and file, as well as help us with patent applications. Legal 500, 2023
  • I have worked closely with Jonathan Perlmutter. He has many years of experience in intellectual property and has helped us to win legal battles on big cases. Legal 500, 2023
  • Excellent knowledge of all aspects and friendly conversations to help IP strategy and direction before committing to a direction. Legal 500, 2023