Ranked in tier 1 by The Legal 500 and Chambers and Partners, we are one of the largest UK and European Patent and Trade Mark Attorney firms, with offices in London, Oxford, Cambridge, Paris and Munich. Established in the 1940s by our founder, John Arthur Kemp, we have grown to become one of a handful of leading UK firms with a strong international practice.
On 1 October 2019 the firm became a Limited Liability Partnership. On this date, J A Kemp’s business, contracts and client monies were all transferred to J A Kemp LLP.
The breadth and depth of our technical knowledge relevant to patents is outstanding, with over 80 science and technology graduates in the firm including over 40 PhDs. No area of science or technology is outside our scope.
Our trade marks team comprises senior professionals with backgrounds in major international law firms. The team has the expertise and resources to handle any trade marks matter.
We draft, file and prosecute patent applications in the UK, Europe and the rest of the world. We handle patent oppositions and appeals within Europe, especially before the European Patent Office. We add value to your business by advising on patent strategy, such as where and when to file applications. We can help you to manage your patent portfolios in individual countries, regionally or worldwide.
We advise on trade mark selection and strategy and we file, defend and oppose trade mark applications in the UK, Europe and the rest of the world. We can obtain global protection for your trade marks through international applications before the World Intellectual Property Organization (WIPO) and by instructing filing and prosecution programmes worldwide.
We handle all aspects of design protection in the UK, Europe and the rest of the world.
We conduct intellectual property litigation and other contentious intellectual property matters in the High Court of England and Wales, the Intellectual Property Enterprise Court, the UK Intellectual Property Office and the European Union Intellectual Property Office, plus their respective appeal courts. In due course we will handle such matters in the Unified Patent Court.
We set great store by what our clients say about our service standards. Here are some comments from our clients sourced from the legal and IP directories and our own client survey.
"Clients are most impressed with the work of J A Kemp. The team are highly responsive, intensely hard-working, and uniformly thoughtful in their handling of prosecution and post-prosecution matters (e.g. oppositions). They are proactive and induce a high degree of confidence."
"I am really impressed with them. The team is very proactive, strategic and thinks about the best way to move forward."
"The firm's partners have become trusted colleagues over the years."
"J A Kemp offers some of the finest patent services in Europe, delivers cast-iron protection for inventions of all types and conducts sterling opposition and appeal work at the EPO."
"J A Kemp’s team of trade mark attorneys are true experts and above all extremely commercial."
"I don’t work with anyone as good. I recommend J A Kemp because it’s good for my clients."
"J A Kemp gives good, clear, commercial recommendations."
J A Kemp is "a go-to for UK and European trademark matters – its expert practitioners provide practical advice quickly and for a fair price, and impress at every turn".
"A first-class firm that brings a high level of expertise to every job, be it large or small."
"J A Kemp is my preferred firm because the level of service and understanding of the client’s technology is great."
"We want the best protection available and I give J A Kemp the highest marks possible."
"It is an excellent firm with a truly first-rate group of attorneys."
"J A Kemp has a very 'can do' attitude for jobs which are complex."
"J A Kemp is extremely knowledgeable and does a fantastic job."
"If I want an opinion I’ll go with J A Kemp."
"The whole team is extremely knowledgeable of the underlying subject matter and also of EU patent practice - they do a valuable analysis of the specifications to optimise the patent’s strength."
"I would recommend J A Kemp when people need some extra input."
"These are some of the most detailed and thorough instructions that I have ever seen. They evidence a keen understanding of US practice."
"I cannot thank you enough for your expert advice and careful strategic thinking in this matter."