Our people

Simon Kiddle

Simon Kiddle

Our People

Simon Kiddle

Partner, Patent Attorney, Head of Life Sciences

Life Sciences


UPC Representative

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Our IP specialists work at all stages of the IP life cycle and provide strategic advice about patent, trade mark and registered designs, as well as any IP-related disputes and legal and commercial requirements.

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Simon has more than 30 years’ experience in original patent drafting, patent strategy European oppositions and appeals, including complex multi-party proceedings, and due diligence work, across the life sciences field for both large and small molecule therapeutics. He has worked on the portfolios covering many top selling biologics and has been at the forefront of patenting in the field of precision medicine and life cycle management for therapeutics. Simon heads up the firm’s Life Sciences practice group and is a member of our Management Board.

Areas of Expertise

  • biologics such as antibody, protein and peptide therapeutics
  • tumour necrosis factor receptor and ligand biology
  • small molecule pharmaceutical chemistry
  • industrial bioscience, especially enzyme engineering for various industrial and domestic uses
  • next generation sequencing
  • formulation technology
  • biological nanoparticles and their uses
  • microfluidic devices
  • microarray technology


Simon works with large and small biotech companies, universities and research charities. He also advises start-up companies and investors in patent strategy.


Simon has a chemistry degree from Oxford University. He joined Mewburn Ellis LLP in 1991, qualifying as a Chartered Patent Attorney in 1994 and a European Patent Attorney the following year. He joined the partnership in 1997.


Frequently listed in Legal 500 and IAM Patent 1000, gaining praise for being “thorough”, “diligent”, “efficient” and “reliable”, Simon has also been recognised for his work as part of a team defending five European patents in a string of EPO proceedings.

“His work is of a notably high quality, his strategic advice is clear and effective, and his judgement is sound.” - IAM Patent 1000, 2021

Simon “quickly understands the nuances of complex portfolios and provides expert strategic advice” - IAM Patent 1000, 2020

“A cleantech guru, with the ability to craft spotless patents and defend the least promising EPO cases with remarkable success” -  IAM Patent 1000, 2019

Noteable practitioner  - Chambers & Partners, 2019

Simon Kiddle is noted as being "a rock for Mewburn Ellis in his nearly 25-year career. Renowned for drafting iron-clad patents, he performs with guile on oppositions and appeals". - IAM Patent 1000 2014

Focus on Inclusivity

Simon has personally signed up to the IP Inclusive Senior Leader’s Pledge and is committed to a culture of inclusive leadership across the business and partnership, in particular to continuing the diversity of recruitment of graduates having the opportunity to train as patent and trade mark attorneys.