Susanne Cahill


Director and Patent Attorney

I am a Patent Attorney with extensive experience in a wide variety of practice areas with my focus in Life science and Biotechnology including microbiology, immunology (including antibodies), stem cells, biofuels, vaccines, diagnostics, pharmaceuticals, drug delivery systems, food science, plant variety rights, as well as medical devices including stents and pacemakers and mechanical devices.

I have vast experience in advising, drafting and prosecuting patent applications for these sectors in multiple jurisdictions including Ireland, the UK, Europe, the US, China, Japan and Australia. My work involves providing strategic advice, management of worldwide patent portfolios, the preparation of opinions and freedom to operate analyses. I also have experience representing clients before the Examining and Opposition Divisions at the European Patent office.

My knowledge also extends to the field of Supplementary Protection Certificates (SPCs) having filed SPC applications at both the Irish Patents Office (IPO) and the UK Intellectual Property Office (UKIPO). In addition to patents, I have experience in the registration of designs, particularly European Community Registered Designs.

Throughout my career, I have worked with a variety of clients including private inventors, SMEs, biotech start-ups, Universities and large multinationals.

I completed my PhD at Trinity College Dublin where I investigated molecular markers in Papillary Thyroid Carcinoma. I worked briefly as a postdoctoral researcher in the field of nutritional genomics before entering the patent profession in 2007.

I started my career with an Irish based firm of patent attorneys, before moving to the UK where I worked at a leading London based IP law firm from where I joined Purdy Lucey in 2016.

I am a European Patent Attorney, a Chartered UK Patent Attorney, a Registered Irish Patent Agent and a Community Trade Mark Attorney.

I am also a member of the Law Committee of the Association of Patent and Trade Mark Agents of Ireland and has tutored on Irish, UK and European Patent Law.

I am also a previous member of the European Qualifying Examination Committee for Chemistry.

  • PurdyLucey Named Patent Prosecution Firm of the Year 2022
    IP Stars / Managing IP
  • Barry Purdy named as a Global IP Star by MIP
    IP Stars / Managing IP
  • Michael Lucey named as a Global IP Star
    IP Stars / Managing IP
  • PurdyLucey Named As Top Tier Firm For Patent Prosecution
    IP Stars / Managing IP 2021
  • Susanne Cahill Named as a 'Rising Star' by Managing IP
    IP Stars / Managing IP
  • Michael Lucey named a Global IP Star by Managing IP
    IP Stars / Managing IP
  • Barry Purdy recognised as a Global IP Star by Managing IP
    IP Stars / Managing IP
  • Patent Prosecution Firm of the Year 2020
    IP Stars / Managing IP
  • 'Hallmarks of the IP service at PurdyLucey are attention to detail and a resolutely commercial focus; every patent application – whether under the Irish, UK, European or Patent Cooperation Treaty systems – is drafted, filed and prosecuted with the utmost care and rigour.'
    IAM Patent 1000 - 2018
  • 'PurdyLucey has been 'warmly endorsed' and is described by IAM as a firm that has secured ''a remarkably strong foothold'' in the prosecution market, thanks to its bright practitioners, whose ''exemplary lateral thinking generates novel concepts and successful strategies''. Highly recommended is co-founder Michael Lucey, a software authority who dispatches ICT mandates with aplomb.'
    IAM Patent 1000 - 2018
  • 'Co-founded by established attorneys Barry Purdy and Michael Lucey, PurdyLucey is forging a strong name thanks to its ''superb pool of prosecution nous''. It is particularly noted for its prowess in Purdy's chosen field of biotechnology, making it a prime choice for life sciences clients. This concentration is complemented by Lucey's success in his electronics and software specialism.'
    IA Patent 1000 - 2018
  • 'Barry Purdy and Michael Lucey are the leading lights and should be considered among the top names in Ireland.'
    Managing Intellectual Property - 2018