Ian MacLeod

Senior Associate

Ian’s practice covers a wide range of biotechnological subject-matter, with particular focus on the microbiome, vaccines, antibody therapeutics, biomarker diagnostics, and antisense nucleotides. He works with a range of clients, from multinational pharmaceutical firms to a number of university spin-outs, many of which he has helped for years as their businesses develop. A large part of Ian’s practice involves coordinating the prosecution and defence of global patent portfolios and obtaining the grant of important patents for his clients with claims focussed on their commercial needs.

Alongside prosecution work, Ian also has an extensive opposition practice and represents his clients defending and opposing European patents, including multi-party cases up to the Boards of Appeal. Ian also uses his prosecution and opposition experience to provide clients with comprehensive and effective patent drafting and freedom to operate analysis.

Ian joined Carpmaels & Ransford in 2008 and qualified as a UK Patent Attorney and a European Patent Attorney in 2012, becoming a Senior Associate in 2015. Before joining Carpmaels & Ransford, Ian studied Natural Sciences at Cambridge University, specialising in Genetics. Following graduation, Ian undertook a PhD at the Cambridge Institute for Medical Research. His PhD research characterised the toxic polymerisation of mutant neuroserpin, which causes a rare dementia, through the development and utilisation of a Drosophila model of the disease.

Ian enjoys various sports at a pretty relaxed level and regularly plays football, touch rugby and volleyball. He also likes live music and music festivals.


  • MA Natural Sciences (University of Cambridge)
  • PhD (University of Cambridge)
  • Chartered Patent Attorney
  • European Patent Attorney