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Ciara Cullen

An IP and technology litigation specialist, Ciara Cullen is dual qualified in England & Wales and the Republic of Ireland and has acted in several international disputes.

Having acted in several disputes before the English and Irish Courts, the UK IPO, the ICC and CIETAC, Ciara's practice also has a significant international element and sees her advising clients on multi-jurisdictional disputes across the full range of IP rights including trade marks / passing off, copyright, patents, design rights, breach of confidential information and IP licence disputes.


On the non-contentious side, Ciara supports clients on brand protection and counterfeit issues, IP projects and licensing, sponsorship/endorsement arrangements, franchising and commercial contracts.  She also provides specialist advice on IP and technology acquisitions and disposals. 


Clients range from luxury goods, retail and food to FMCG, technology, media, life sciences, insurance and financial services. 


Ciara has been published in several leading journals including Managing IP, e-Commerce Law and Policy, SCL, LexisNexis and ILO and regularly speaks at client and industry conferences.   Ciara is a member of the editorial team that produces the annual TerraLex Cross-Border Copyright Guide.

Relevant work

Advising several premium and luxury spirits brands on the exploitation and protection of IP rights, IP enforcement and counterfeit issues, sponsorship and endorsement arrangements and IP disputes in various jurisdictions

Acting for a global petrochemical company in arbitration proceedings in Hong Kong before CIETAC relating to alleged breach of confidential information

Acting for an international food conglomerate in a franchising and trade mark dispute before the ICC in Paris

Acting for an international service company in a procurement outsourcing dispute before the UK Commercial Court

Acting for a multinational pharmaceutical company in patent infringement and revocation proceedings concerning coronary stents before the Irish Commercial Court

Directory Quotes

Next Generation Partner - The Legal 500 UK 2021 

"Approachable, knowledgeable and very commercial" - The Legal 500 UK 2021

Recommended - The Legal 500 UK 2021

"Ciara Cullen is very professional, friendly and knowledgeable. Her litigation experience comes in handy when negotiating complex agreements." - The Legal 500 UK 2021

Recommended - The Legal 500 UK 2021 

"Ciara Cullen is very client friendly. Approachable, able to flex style as appropriate and to explain complex legal issues in a clear and concise way." - The Legal 500 UK 2021

"Ciara Cullen is very knowledgeable and responsive, good at handling clients with sensitivity and creating rapport." - The Legal 500 UK 2021

"Ciara Cullen is able to flex style as appropriate and to explain complex legal issues in a clear and concise way. Consistently delivers sound legal advice in a digestible form." - The Legal 500 UK 2021

One client describes Ciara Cullen as 'one of the best lawyers I have ever had the pleasure of working with; she gets what I need and delivers…she is knowledgeable about all IP rights, commercial and practical'. - World Trademark Review 1000 2020 

"Ciara Cullen is great at bringing people together to share insights on current issues facing in-house teams – she ensures there are always tangible results" - The Legal 500 UK 2020

[Ciara] is an authority on sponsorship and endorsement arrangements and other commercial IP matters. - World Trademark Review 1000 2019

[Ciara] puts her finely honed negotiation skills to good use when resolving cross-border trademark disputes. - World Trademark Review 1000 2019  

"Rising star" – Managing Intellectual Property, IP Stars, 2016 edition 


Member of the London Irish Business Society (LIBS)
TerraLex Cross-Border Copyright Guide 2016 File type: PDF Size: 13534 KB