Rosalind Drywood

UK & European Patent Attorney

Posy joined Mathys & Squire in 2009.  She qualified as a Chartered Patent Attorney in 2011, winning the CIPA Drafting Prize for passing the UK drafting exam with the highest mark and qualified as a European Patent Attorney in 2012.


Year joined: 2009

Qualifications: MA MSci (Cantab) EPA CPA


Posy drafts and prosecutes patent applications in the field of chemistry, and is particularly familiar with inventions relating to plastics, electrochemistry and chemical engineering. She has also worked on oppositions and appeals at the EPO and spent time on secondment with a multinational petrochemical company, prosecuting a worldwide patent portfolio on their behalf.


Posy has a master’s degree in natural sciences from the University of Cambridge. She also has a certificate in intellectual property law from Queen Mary, University of London and qualified as a Chartered Patent Attorney in 2011.

Membership & Organisations

Rosalind is a member of CIPA.



  •  Patent Applications

  • Patent Drafting and Filing
  • Patent Enforcement
  • Patent Portfolio Management
  • Patent Oppositions
  • IP Strategy
  • Commercialisation
  • Freedom to Operate
  • Due Diligence
  • Licensing

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