Intellectual Property

William Fry boasts Ireland’s leading Intellectual Property Group with dedicated Intellectual Property lawyers dealing on a full time basis with contentious and non-contentious cases for clients.  The Intellectual Property team prides itself on its expertise and experience.  The Firm’s commitment to Intellectual Property as a core practice area is recognised internationally with William Fry being consistently ranked as Ireland’s premier law firm in the area.

William Fry was awarded 'Irish (Contentious) IP Firm of the Year' at the Managing IP Global Awards 2017.

The Firm’s reputation in this field is evidenced by its experience.  Whether in contentious or non-contentious matters it has represented clients in all key Intellectual Property deals and reported case law over the last five years.

Areas of Expertise Include:

  • Patents
  • Trade Marks
  • Passing Off
  • Copyright
  • Designs
  • Databases
  • Confidentiality Agreements
  • Franchising Agreements
  • Licensing and Royalty Agreements
  • Agency, Distribution and Merchandising Agreements

We are assertive and solution oriented in the boardroom and in dispute resolution, whether by arbitration, mediation  or in the Courts.  Our commitment to providing clients with an unrivalled professional service has made us Ireland’s leading practitioners in Intellectual Property.  Our focus is always on delivering results for the client.

We act for major domestic and international clients in all sectors, recently including:

  • Bord Gáis Energy, an Irish utility supplier, on its sponsorship agreement with the GAA 
  • DCC Healthcare Limited, a leading healthcare business, during its acquisition of Medisource Ireland Limited. Medisource Ireland Limited is a pharmaceutical procurement business. The William Fry Technology team advised on some complex aspects of the transaction involving intellectual property and licencing arrangements 
  • PrePayPower in Irish Patents Office proceedings and recently successfully concluded Commercial Court passing off proceedings against Airtricity.  
  • Boehringer Ingelheim in the defence of patent revocation proceedings and in defence of supplementary protection certificate revocation proceedings.
  • ResMed on its technology and IP licensing deal with a global technology/entertainment company, as an integral part of it next generation platform.
  • GlaxoSmithKline in its trade mark infringement and passing off action against Rowex Limited (part of the Rowa/Sandoz group) in the Irish Commercial Court relating to one of its biggest selling pharmaceutical products, SERETIDE, a treatment for asthma and COPD. The case relates to the use of the colour purple by the defendant in respect of its AirFluSal Forspiro inhaler product. 
  • X-Celeprint in relation to complex patent licensing arrangements and research and development agreements relating to its market leading technology and on IP arrangements with partner companies.
  • Brown Thomas, Ireland’s leading exclusive high end lifestyle store, on a trade mark infringement and passing off action.
  • the RDS on all aspects of a complex long term stadium branding sponsorship agreement with a well known European Cup rugby team and a major world player in the insurance market.  We are assisting with all negotiations and drafting of the sponsorship agreement.
  • the Afilias Group, on copyright and other IP considerations in the development of an software products connected to its mobile device recognition software.
  • Premier Lotteries Ireland Limited, a joint venture between Ontario Teachers Pensions Plan and An Post, on IP and commercial aspects of its acquisition and implementation of the Irish National Lottery Licence 2014.
  • Afilias on the acquisition of Generic Top Level Domains and operation of its domain registry business.
  • MSD Corp., in the defence of Irish Commercial Court patent infringement proceedings by Ono Pharmaceuticals and Bristol-Myers Squibb in respect of anti-PD1 antibodies for cancer treatment.       
  • e-Dreams in the defence of Irish Commercial Court proceedings by Ryanair alleging infringement of trade mark and passing off by e-Dreams’ website.   

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We are consistently ranked as one of the leading Intellectual Property law firms in Ireland.


 "Very responsive and aware of the business aspects of a deal."
"Even though we are a small company, the firm gives us its full attention."

Chambers Europe, 2015 - Intellectual Property


William Fry’s ‘go-to team of experts’ includes Leo Moore and lead non-contentious partner David Cullen, who are ‘first-class counsel’. Carol Plunkett, who leads contentious matters, has ‘great instincts’. The firm represented Boston Scientific in patent infringement proceedings brought by OrbusNeich.
Legal 500 EMEA, 2015 - Intellectual Property


William Fry has the deepest bench of patent talent in the country and four individuals are recommended in this year's IAM Patent 1000 - the most from any one firm. Feeding off the innovation culture that has taken root in Ireland, the team dispenses refined non-contentious and contentious advice.


"It is great at sorting out complex problems" and a favourite for seemingly intractable patent disputes. Licencing and transactional mandates are also handled with panache.
IAM Patent 1000, 2014


Choice winner of the 2014 Corporate Intl Magazine Global Award: IP Law Firm of the Year in Ireland.


"The service has been second to none. The team consistently delivers and turns around in-depth, thorough and accurate advice with speed and cost-effectiveness."  "The team's outlook is always innovative and modern. The team is always very responsive and keeps us in the loop so we know where they are and what they are doing."
Chambers Europe, 2014 - Intellectual Property 


William Fry ‘consistently delivers in-depth and accurate legal advice with speed and cost-effectiveness’.
Legal 500 EMEA, 2014


Sources say: “The advice we get is always grounded in our business interests.” “The team's outstanding knowledge of IP is second to none.”
Chambers Europe, 2013 - Intellectual Property


William Fry – Ranked as leading ‘Gold’ firm for Patent Litigation and Licensing in Ireland.
One of the most prominent firms in the market”, William Fry Solicitors expertly handles a raft of contentious pharmaceutical mandates. Carol Plunkett is “the leading light, a determined and strong litigator with an impressive reputation”; she works alongside well-respected Ann Henry. Leo Moore’s “exceptional” technology-focused practice is highlighted by interviewees for advisory and licensing matters.
IAM Patent 1000  – The World’s Leading Patent Practitioners 2012


Sources say: 'It is everything you need from a law firm. The team has the best knowledge of my sector that I have come across.'


'It is accommodating for small companies; we really feel like we get the best from it.'
Chambers Europe, 2012


William Fry ranked "Tier 1" as a leading intellectual property law firm in Ireland for contentious patent lawsuits.
Managing Intellectual Property Patent Survey 2012



Carol Plunkett
Carol  is unanimously regarded as a "powerhouse of IP" with "a wealth of experience" in the field.
Chambers Europe, 2015 - Intellectual Property


Carol Plunkett has ‘great instincts’.
Legal 500 EMEA, 2015 - Intellectual Property


Clients feel Carol Plunkett "has a very good grasp of the brief and the workings of our business. She gives practical, straightforward advice."
Chambers Europe, 2014 - Intellectual Property


You can’t mention patent litigation in Ireland without mentioning Carol Plunkett”, regarded by many as the country’s top IP lawyer.
IAM Patent 1000, 2014


Carol Plunkett is regarded as “a lawyer with a long-standing reputation as one of the best.”
Chambers Europe, 2013 - Intellectual Property


William Fry’s Carol Plunkett is a 'star of the Irish IP fraternity'.
Legal 500 EMEA, 2013


'Carol Plunkett complements her reputation as one of the leading IP litigators in the market with a substantial regulatory practice, and comes highly recommended by her clients.'
Chambers Global, 2012


David Cullen
"An absolute expert and key leader," David Cullen "understands not only where our business is, but what our plans are, how we want to grow and what the consequences are," enthuse clients.
Chambers Europe, 2014 - Intellectual Property

David Cullen is a firm favourite with clients and is described as “calm and considered, with a wealth of knowledge about the area.”
Chambers Europe, 2013 - Intellectual Property


David Cullen is ‘one of the best in the business’.
Legal 500 EMEA, 2013


As well as winning plaudits for his technical ability, David Cullen is lauded as a 'superb negotiator. He can see around corners and anticipate the issues that will arise.'
Chambers Europe, 2012


David Cullen is ‘one of the best in the business’.
Legal 500 EMEA, 2012


Leo Moore
Leo is "extremely responsive, knowledgeable and conscientious."
Chambers Europe, 2015 - Intellectual Property


Leo Moore "is very pragmatic and personable. He comes up with creative solutions and is very good on trade mark and copyrights," according to one source.
Chambers Europe, 2014 - Intellectual Property

Leo Moore "has a can-do attitude, is practical and available 24/7, and gets the job done."
Chambers Europe, 2013 - Intellectual Property


Leo Moore ‘will always find interesting commercial angles in times of need’.
Legal 500 EMEA, 2013


Leo Moore is a firm favourite with his clients. As one enthuses, 'his strength is his ability to take complex issues and communicate it in a simple and easy to understand manner. He is also incredibly pleasant to work with.'
Chambers Europe, 2012


Laura Scott
"Her commitment to clients, astute strategy, technical strength and attention to detail are second to none."
Legal 500 EMEA, 2015 - Intellectual Property


A recent signing from McCann Fitzgerald, Chambers Europe, 2013 - Intellectual Property has a wealth of regulatory knowledge – a boon to clients embroiled in pharmaceutical patent litigation.
IAM Patent 1000, 2014

Clients describe Laura Scott as "absolutely superb. She is very thorough; her work underpins our company." She led the team advising Boston Scientific on an alleged patent infringement claim brought by OrbusNeich
Chambers Europe, 2014 - Intellectual Property

Key Contacts

Carol Plunkett Partner

David Cullen Partner

Leo Moore Partner

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