Leonita Paulraj

Senior Associate

Leonita Paulraj is a UK Chartered and European Patent Attorney in the Chemistry, Biotechnology and Pharmaceuticals patent department. Leonita has specialist expertise in pharmaceuticals, agro-chemicals and life sciences.

“Leonita has a very impressive ability to handle a large number of quite complex European patent applications.”

Legal 500 2023

"AA Thornton's level of service is 'outstanding' - 'timeliness and appropriateness of advice are a constant' according to clients, who rate the level of scientific knowledge displayed by the partners and associate lawyers as 'excellent'."

Legal 500

"AA Thornton maintains its position among the elite patent practices in the nation, largely based on its frequent successful representation of individuals, academic institutions, SMEs and multinational corporations."

Legal 500

"AA Thornton is my favourite and most reliable Firm in the UK. It is one of the finest IP Firms in UK."

D Calab Gabriel, Managing Partner, Lex IP Care


Practice Areas
  • Patents
Industries of Focus
  • Agriculture
  • Pharmaceutical
  • Oil, Gas & Petrochemicals
Core Responsibilities
  • Drafting patent applications
  • Filing and prosecuting patent applications in Europe and worldwide
  • Providing advice on patentability to operate
  • Oppositions and Appeals at the EPO
  • Providing patent development and strategic advice
  • Also a registered Indian Patent and Design Attorney with ten years of experience in providing patent development and strategic advice; drafting and prosecuting patent applications; and filing and defending oppositions at the Indian Patent Office
Professional Memberships
  • Fellow of the Chartered Institute of Patent Attorneys (CIPA)
  • Member of the European Patent Institute (EPI)
  • She began her patent career at an Intellectual Property Rights firm in Chennai, India in 2000
  • She joined AA Thornton in 2010
  • Leonita was promoted to Senior Associate in July 2019
  • MSc Plant Science, University of Madras, Chennai
  • Systems Management, National Institute of Information Technology, Chennai
  • Certificate in Intellectual Property Law, Queen Mary, University of London
  • Qualified as a UK chartered patent attorney in 2013
  • Qualified as a European patent attorney in 2013
  • UK Intellectual Property Litigation Certificate
  • Representative before Unified Patent Court