Sarah Mitchell


Sarah is part of the Biotechnology Practice Group at Carpmaels & Ransford. She primarily works on RNA-targeted drug discovery and development, protein therapeutics using the expanded genetic code, and live biotherapeutics. She has experience working at all stages of patent prosecution, from drafting and developing a filing strategy to prosecution and opposition. Sarah has particular experience in managing large global patent families, where an in-depth understanding of the different national legislation is key to maximising global protection for the client. She has also gained valuable experience working on various validity, strategy and freedom to operate projects where she has provided opinions on the strength and commercial value of a client’s patent portfolio.

Sarah joined Carpmaels & Ransford as a trainee in 2014. She graduated from Christ Church, University of Oxford with a first class degree in Molecular and Cellular Biochemistry. Her final year project involved identifying and characterising the thymic GSL profile of mice and investigating the role CD1d plays in the neuronal dysfunction associated with Sandhoff disease. She was awarded the Gibbs prize by the University for the highest graded project in her academic year.

Outside of work, Sarah is a keen scuba diver and underwater photographer. She loves travelling to exotic and often hard-to-reach locations so that she can photograph something new. She also loves to bake, both simple treats and elaborate cakes for special occasions, all of which tend to go down well with the other members of the practice group!


  • MBiochem (University of Oxford)
  • European Patent Attorney
  • Chartered Patent Attorney
  • CertIP Certificate in Intellectual Property Law
  • UPC Representative