Katrina Crooks



Katrina is a Principal of Shelston Lawyers and one of our expert litigators. She has over 20 years experience advising clients on IP enforcement and defence strategies and representing clients in IP disputes, including Federal Court litigation.


Katrina’s focus is resolving IP disputes with clients’ commercial objectives front of mind. Her extensive experience spans the full spectrum of IP – including patents, copyright, designs, trade marks and confidential information and her clients operate in many industries from pharmaceutical to engineering, communications, fintech, construction, manufacturing and food and beverage.

Katrina has a particular interest in patent disputes in the life sciences and chemistry areas, having acted for a number of global leaders in the pharmaceutical, medical device, nutraceuticals, animal health, biological solutions and agricultural fields. Katrina also has expertise in associated regulatory issues in these fields, such as therapeutic goods regulation.

Katrina’s recent experience includes representing clients in a number of significant complex Federal Court actions and appeals, as well as high value patent oppositions. She also regularly advises clients on infringement and validity issues and IP strategy. Dual qualified as a lawyer and patent attorney, Katrina quickly synthesizes technical detail to identify optimal litigation strategies often embedding steps to strengthen the relevant IP portfolio where appropriate.

Katrina’s cases frequently involve multi-jurisdictional aspects. She spent many years living and working as a lawyer overseas, and is well accustomed to working as part of an international legal team. She regularly writes on IP issues and is the author of “Patents in New Zealand: A Comparison with Australian Patent Law” chapter of LexisNexis Lahore’s Patents, Trade Marks and Related Rights.

“She is extremely competent and technically strong. However, she goes further by being able to distil complex legal issues to terminology which is readily understood by commercial people who are not legally trained.” [Comment from client in long-running Federal Court patent litigation]


  • Master of Laws (First Class Honours), University of Cambridge, United Kingdom (2001)
  • Bachelor of Laws (First Class Honours), University of Canterbury, New Zealand (1998)
  • Bachelor of Commerce, University of Canterbury, New Zealand (1998)
  • Admitted as Solicitor of the High Court of Australia and Supreme Court of NSW
  • Registered Trans-Tasman Patent Attorney
  • Admitted as Barrister and Solicitor of the High Court of New Zealand (non-practising)
  • Admitted as an Irish solicitor (non-practising)


  • Law Society of New South Wales
  • IP Committee of Business Law Section, Law Council of Australia
  • Member of Trans-Tasman Committee, Intellectual Property Society of Australia and New Zealand
  • NSW Women Lawyers Association
  • International Association for the Protection of Intellectual Property (AIPPI)
  • The Institute of Patent and Trade Mark Attorneys of Australia


  • Recommended in Doyles Guide New South Wales 2020 as a Leading Contentious Intellectual Property Lawyer
  • Shelston Lawyers litigation team shortlisted for Australian Managing IP Asia-Pacific Award 2020 for Contentious Patent Work
  • Recognised as a “patent expert and experienced litigator” by Legal 500 Asia Pacific 2018 and named in 2019 and 2020
  • Named in Managing Intellectual Property IP Stars 2016 and 2017