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With ‘profound knowledge of UK intellectual property law’, Birkett Long LLP acts on a spectrum of matters, including original patent and trade mark filing and prosecution mandates. The team, based in Colchester, is led by Jonathan Perlmutter, who is well regarded for his expertise in multi-jurisdictional trade mark work, international filing strategies, and opposition to third-party trade marks. He is joined by Christopher Burnett, who has an array of experience in contentious patent work.

Legal 500 Editorial commentary

Testimonials

Collated independently by Legal 500 research team.

  • ‘Birkett Long team were able to provide a high level of services and demonstrate not only great professional knowledge and expertise but also a client oriented approach.’

  • ‘We primarily have worked with Jonathan Perlmutter, who is partner and head of IP. During our experience we have faced several complex and urgent matters including high profile IP disputes. In every such case Jonathan was able to demonstrate his availability and ability to provide quality and timely advice as well as swift action where necessary.'

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Key clients

  • Harwich Haven Authority
  • Korda Developments Ltd
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Work highlights

  • Undertook the global filing and prosecution of heavy industrial patent relating to harbour dredging for Harwich Haven authority.
  • Coordinated multi-jurisdictional IP litigation for Engineer.ai Global Limited.
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