Business Legal Services
Patent Litigation
Service overview: Patent litigation
Are you looking to enforce your patent? Or have you been wrongly accused of patent infringement? In either case, our highly experienced patent litigation team can help you defend or enforce a patent infringement claim.
From the outset, we will help you understand your position and the legal options available to you. When all other ADR routes have been exhausted, you can depend on the commercial acumen of our patent litigation attorney to get you the most cost-effective result.
Experts in patent litigation
Our team can assist you across all areas of patent litigation, including:
How we can help: Pre-litigation strategy and effective negotiations
Our patent attorney can support you with advice on all aspects of patent litigation such as:
Pre-action procedures and settlement negotiations
Assessing risk of revocation of the patent before proceeding with litigation.
Patent litigation strategy
We support businesses in filing claims, considering the available evidence, demonstrating the validity of the patent, and the likely costs involved in pursuing settlement.
Requests for a non-binding opinion from the Intellectual Property Office (IPO)
We can help with requests to the IPO on the issue of infringement or the validity of a patent to help you decide whether to commence proceedings.
Enforcement of patents against third parties.
Defending organisations against patent infringement claims.
Securing any relief or remedies that may be available.
Advice on the points in your IP lifecycle which may trigger disputes
We can remain prepared for oppositions, and poised for litigation and appeals.
Efficient litigation
We work in both the IPEC and the Patents Court with established working relationships with the UK IPO and the European Patent Office. We will ensure your matter is managed effectively.
Seeking interim injunctions in addition to damages so that the ongoing patent infringement will cease until a decision is made at trial.
Careful management of complex patent disputes and litigation spanning across multiple jurisdictions.
Appeals and challenging the IPO
For example, we can help where the patent specification has been wrongly interpreted, providing arguments, or amending the patent to address issues and avoid revocation.
Up-to-date knowledge of the Unified Patents Court
Who we help: Innovative UK-based businesses
A wide range of clients – including market-disruptive companies, start-ups, high-growth companies, and large multi-nationals – all come to us for support with patent litigation strategy and advice.
They come to us because we draw on our broad experience as external IP advisors and in-house counsel in a range of sectors, including technology, life sciences and healthcare, engineering, energy and environmental, as well as manufacturing. We have particular experience with patents in the technology and creative industries and university R&D spinouts. We’ll quickly get to grips with the intricacies of your technologies and the nuances of your industry to provide you with a holistic view of your IP strategy.
Benefits of expert support with the patent litigation process
An integrated approach
We’ll take the time to get to know your overall IP strategy. That way, we can fully gauge your long-term commercial objectives and negotiate the best possible outcome for your business.
Get back to the day-to-day
We understand that your IP may just be one element of your business. During the patent litigation process, we can take the weight of the admin and management so that it’s business as usual for you and your management team.
Advice throughout the IP lifecycle
Our partnership doesn’t have to stop with the end of the patent litigation process. We can continue to support you to make the most of your intellectual property, finding opportunities for commercialisation and expansion alongside the patent prosecution process.
A well-rounded commercial awareness
Our support can extend to any element of your business, from commercial contracts, to corporate structures, employment contracts and beyond. As a full-service commercial law firm, we can provide support at every stage in your business’ growth.
Finding the right legal partner
Why work with Harper James
Choose a legal partner you can trust: we’ll help protect your goals, your business and your people so you can move forward with confidence and focus on growing your business.
Affordable, transparent and predictable pricing
Clear itemised invoices, subscription plans with up to 50% discount, and fixed fee products help you plan and manage legal spend – with no nasty surprises.
Proven track record and measurable results
We’ve supported over 8,000 businesses since 2014, with an ‘Excellent’ rating on Trustpilot and a Net Promoter Score (NPS) of 60+ from monthly client surveys.
Straight-talking, responsive advice
We’re here to make things easier, not add complexity. That means fast response times, practical expert legal advice delivered in plain English, and dedicated client service and account management support.
Risk and compliance assured
We’re an SRA regulated firm, but more importantly, we build quality, data, and compliance best practice into everything we do.
Appointing a legal partner is a big decision. That’s why we’re open about our values, culture and model, so you can see what makes us tick. And because a productive partnership starts with understanding, we always begin with a conversation – listening to your goals, pressures and plans, then tailoring our support to fit.
Testimonials
What our clients say
Why choose Harper James Solicitors?
The team has a depth of technical expertise to provide you with the best possible outcome for your business and is well placed to co-ordinate disputes spanning across other jurisdictions.
Our patent litigators have a proven track record of settling disputes quickly and in a cost-effective manner, both in and out of court and are experienced in taking cases to the High Court and Court of Appeal.
Find out more about our team here:
Top ranked SME focused firm
"Harper James is a one-stop shop for anything legal. It has excellent breadth, with experience on a large number of deals and multiple departments for different legal areas."
Chambers and Partners 2026
Pricing and service plans
Legal support designed
to fit your business needs
Our three transparent service plans are designed to give you the widest possible access to high-quality legal advice, whatever the size and nature of your business:
Engage
Flexible access to senior solicitors at highly competitive rates
An alternative to our subscription plans, offering access to full service legal expertise on a project-by-project basis.
Enable
Purpose built legal support for start-ups and smaller businesses
Monthly subscription plan for £239 per month, with £159 monthly credit and access to all legal services at 50% discount on our Standard Rates.
Extend
Comprehensive legal partnership for established businesses
Fully account managed and scalable annual subscription plan with support from a curated team of partners and senior solicitors, with up to 33% discount on our Standard Rates.
