“I used to work for a large UK patent law firm and here at P&TS I continue to represent clients before the European, UK and Irish Patent Offices; I now also represent clients before Swiss Patent Office.”

Ronan Guirey

Director of the P&TS Zurich office
European, Swiss, UK and Irish patent attorney

Electrical Engineer

Community TradeMark&Design Attorney

Irish TradeMark&Design Attorney

Strasbourg University Diploma in European Patent Litigation

IP specialist coach for Innosuisse

Qualifications

Ronan holds numerous professional qualifications, including:
• European, UK, Swiss, and Irish Patent Attorney
• European Patent Litigator (D.E.S.U) and Representative before the Unified Patent Court
• UK Chartered Patent Attorney & Irish Registered Patent Agent
• European and Irish Trademark, Design, and Copyright Attorney
• Postgraduate Diploma in Patent Litigation
• Postgraduate Diploma in Artificial Intelligence and Intellectual Property
• Bachelor of Electrical and Electronic Engineering

Expertise

Ronan has deep expertise and experience in the technical fields of:
• Artificial Intelligence and software
• Robotics (including drones) and automation
• Medical technology
• Semiconductors
• Mechanics
• Sustainable technologies

Affiliations

VESPA

 Vcard

 LinkedIn

Languages: English, German.

Ronan is a seasoned Intellectual Property Attorney with over 21 years of experience advising startups, SMEs, and international clients on complex IP portfolios, global filing strategies, and high-stakes innovation projects. He specialises in fast-moving, technology-driven fields including AI and software, robotics and automation, medical technology, semiconductors, mechanics, and sustainable technologies.

Over the years, Ronan has become a well-recognised figure within the Swiss startup ecosystem. Since 2014, he has served as an Innosuisse coach, helping hundreds of startups build strong and strategically aligned IP portfolios to support their business goals.

He holds a first-class honours Bachelor’s degree in Electrical and Electronic Engineering from University College Cork, Ireland, where he earned the academic title of Scholar for outstanding results. Ronan began his IP career at Motorola, gaining industry experience in telecommunications before transitioning to private practice in Dublin in 2005. He later joined a leading UK patent firm before moving to P&TS in 2010. In 2014, he established the Zürich branch (P&TS AG), where he now serves as Director.

He is currently completing a Master’s degree in Artificial Intelligence, Digital Technologies and Intellectual Property.

Ronan advises clients on patents, trade secrets, designs, trademarks, software law, AI law, data protection, and IP strategy.

He has extensive experience representing clients before the European Patent Office (EPO), the UK Intellectual Property Office, and major patent offices across Asia. His practice covers the full spectrum of patent prosecution, from drafting and examination to complex procedural strategies in multinational portfolios.

He regularly acts in EPO oppositions and oral proceedings in technically challenging cases. Beyond prosecution, Ronan advises and represents clients in arbitrations, mediations, and patent-related litigation, as well as a broad range of contentious proceedings involving patents, designs, trade secrets, and software/AI-related disputes

Ronan has also taught European Patent Law for several years as a CEIPI tutor at the University of Strasbourg.

Hobbies: Running, cycling, skiing, and reading
Languages: English, German
Born: 1980, Cork, Republic of Ireland