Can you take a lien over your clients' patents? IPReg explains the rules

Managing IP is part of Legal Benchmarking Limited, 1-2 Paris Gardens, London, SE1 8ND

Copyright © Legal Benchmarking Limited and its affiliated companies 2026

Accessibility | Terms of Use | Privacy Policy | Modern Slavery Statement

Cookies Settings

Can you take a lien over your clients' patents? IPReg explains the rules

The body in charge of regulating the conduct of IP attorneys in the UK has clarified when attorneys may take liens over their clients’ IP rights

The Patent Regulation Board (known as IP Reg) has today published a practice note reminding attorneys that any lien they claim must be allowed under law and as well as complying with IPReg’s conflict rules.

It goes on to say “Regulated Persons do not benefit from a statutory lien. The circumstances entitling a Regulated Person to claim a lien at common law are far from clear. Whilst stopping short of requiring all Regulated Persons to claim only contractual liens, IPReg and the Joint Disciplinary Panel believe that in cases where there is no contractual right to claim a lien in the relevant terms of business a Regulated Person places themselves at a significantly increased risk of breaching Rules 5 and/or 7 [relating to conflicts on interest] in the event that they seek to retain their client’s property to secure payment of fees and disbursements.”

As a result, the attorney industry’s watchdog urges attorneys who want to claim a lien to put clear contractual terms in their terms of business and ensure that their clients understand what they mean.

IPReg issued the guidance after handling a disciplinary procedure between an IP attorney and a former client who claimed the adviser had tried to transfer rights in its intellectual property to himself following a dispute over unpaid bills.

Now the attorney has agreed to hand back intellectual property belonging to the client. David Rickard said he would transfer the legal title in the IP “free of all encumbrances” by February 4 in an undertaking last month following a determination by the disciplinary panel of IPReg.

The Statement of Facts in the dispute published by IPReg reveals that Rickard and his client, legal software provider Desk Space, were in dispute over money. Desk Space claims that Rickard failed to pay for office management software it had provided to him. Rickard alleges that the software was defective and that he was due payment for work he had carried out for Desk Space.

In March 2009 Rickard notified his former client that it was required to execute a transfer of its IP to him under the attorney’s terms of business. He later executed a deed purporting to assign the IP to himself.

Now Rickard has agreed not to rely on any new terms of business without approval from IPReg.

The dispute raised questions about the right of attorneys to assign clients’ IP rights as security for unpaid bills. IPReg will hope that its practice note will clarify how such liens can be used in attorneys’ terms and conditions.

IPReg handles complaints referred to it by a legal ombudsman about the conduct of IP attorneys. These are relatively rare: In 2011, for example, the ombudsman reviewed 16 cases and accepted 11 of them for resolution. It did not refer any to IPReg.

more from across site and SHARED ros bottom lb

More from across our site

Daniel Law CEO Alicia Daniel-Shores may have stepped into a family business, but she has spent two decades building her own vision around technology and litigation
Law firms don't particularly like saying no to clients. Perhaps they should get better at it
The office, which has a relatively new patent litigation team as well as a wider ‘soft’ IP offering, would remain independent if the rejection is rubberstamped
The IP boutique is betting that growing investment in quantum and semiconductors will fuel demand as technology shifts toward physical systems
Lawyers say the overhaul better reflects commercial reality, with changes spanning novelty searches, digital designs and access to a small claims track, but stopping short of criminalising unregistered design infringement
Carpmaels & Ransford hires its fourth partner of the year and wins access to UPC files, as fresh orders address costs, confidentiality and the use of divisional patents
Peter Ling of Lenz & Staehelin in Zurich discusses trends in patent litigation, the regulation of AI and the benefits of teaching IP
Brandsmiths and Powell Gilbert will contest claims over several UK trademarks in a High Court case examining the ownership and revival of a heritage brand
Hogan Lovells Cadwalader is taking a fresh strategic approach to pricing in its AI strategy. It could amplify calls for law firms to ditch the billable hour
Charles Harding plans to build a new team around life sciences oppositions and contentious work, drawing on his three decades developing a practice from scratch at D Young & Co
Gift this article