Meet the IP Professional: Simon Kremer – Life sciences expertise shaped by experience

Simon Kremer is a Partner and European and UK Patent Attorney at Mewburn Ellis, specialising in life sciences. With nearly three decades at the firm, he brings a deeply practical perspective shaped by experience across patents, oppositions, appeals and long-standing client relationships.

Quick profile

• Name: Simon Kremer

• Role: Partner, European & UK Patent Attorney

• Firm: Mewburn Ellis LLP

• Location: London, UK

• Areas of expertise: Life sciences patents, oppositions and appeals at the European Patent Office, synthetic and engineering biology, therapeutics, plant biotechnology, due diligence

  
  

Finding a route into IP

Simon’s route into intellectual property was not a planned one. After completing a PhD in biochemistry at the University of Bristol and spending time working at the laboratory bench, he realised that an academic career was not the right long-term fit. A visit to the university careers service in the early 1990s introduced him—almost by chance—to the patent attorney profession.

What appealed was the combination of science and law, and the opportunity to continue engaging deeply with new technologies without remaining in academia. That balance has remained central to his career ever since.

A broad foundation in government IP

Before joining private practice, Simon began his IP career at the UK Ministry of Defence’s Intellectual Property Rights department. The role provided unusually broad exposure, covering far more than patents alone. His work ranged from contracts and procurement to international agreements, crown use provisions and advising other government departments that lacked their own IP expertise.

That experience gave him an early appreciation of how IP operates “at the coalface”, and of the consequences when it is handled poorly. Seeing how intellectual property decisions could affect everything from basic procurement to major defence projects helped shape his practical, commercially grounded approach.

Milestones rather than turning points

Looking back over almost 30 years at Mewburn Ellis, Simon does not frame his career in terms of dramatic turning points. Instead, he sees it as a series of professional milestones: conducting his first EPO hearings, leading Board of Appeal cases, meeting long-standing clients in person after years of correspondence, and guiding clients through major due diligence exercises.

Alongside these were internal milestones—joining the partnership, contributing to the firm’s growth, and training successive generations of patent attorneys. Over time, both Simon’s role and the firm itself evolved significantly, with Mewburn Ellis growing from a small partnership into a much larger organisation.

Balancing multiple responsibilities

Today, Simon’s role spans client work, mentoring, training, management responsibilities and business development. While the scope of the role has broadened over time, he remains closely involved in day-to-day client matters and values staying connected to the practical work.

His technical focus continues to be driven largely by clients. Areas such as synthetic and engineering biology, plant-related technologies and therapeutics feature prominently, reflecting both long-standing expertise and emerging technological importance.

Translating complexity into value

A recurring theme in Simon’s approach is experience—particularly the experience of seeing patents through their full lifecycle. Having drafted applications that have later been challenged and then exploited, he has developed a strong sense of how early drafting decisions can shape outcomes decades later.

This perspective allows him to anticipate what clients may need at different stages, even when they cannot articulate it themselves. For Simon, a key part of the patent attorney’s role is understanding not just the invention, but the purpose the IP needs to serve over time, while balancing commercial realities such as funding and cost.

The reality of oppositions and appeals

Oppositions and appeals before the European Patent Office form a significant part of Simon’s practice. He is candid about the demands of this work, describing the preparation phase as intense and emotionally draining. The challenge lies in mastering every detail and ensuring there are no surprises on the day.

The reward comes from presenting a case clearly and confidently, knowing that every argument has been tested in advance. While outcomes cannot always be controlled, Simon values ensuring that clients are fully prepared for both the process and the result.

Adapting to different clients

Simon works with a wide range of clients, from individual inventors and universities to multinational companies. Adapting his approach comes down, again, to experience. Different clients require different levels of explanation and guidance, and understanding the journey each client is likely to take helps shape how advice is delivered.

For some, the process is as much educational as it is legal; for others, it is about providing targeted support within an established in-house framework.

Industry pressures and evolving standards

When it comes to broader industry trends, Simon points less to headline topics and more to practical realities. Funding environments have a direct and immediate impact on patent strategy, particularly in the life sciences, where global protection is costly and long-term.

He also notes that as technologies mature and tools become more accessible, the bar for inventiveness continues to rise. Areas such as biotechnology require increasingly creative approaches to meet patentability standards, even as the underlying science becomes more routine.

Learning from the wider profession

Beyond client work, Simon has remained active within the profession through bodies such as CIPA. He values the opportunity to engage with peers outside his own firm in a collaborative rather than adversarial setting.

These interactions provide alternative perspectives and reinforce the social and collegiate nature of the profession. While they may not directly change day-to-day practice, they have helped shape the kind of attorney Simon has become.

Passing on hard-earned lessons

In mentoring younger colleagues, Simon focuses on helping them understand what clients truly value. While clients can assess responsiveness and reliability, they cannot easily judge the quality of a patent application. That responsibility rests firmly with the attorney.

Sharing lessons learned from seeing patents challenged years after drafting is central to his approach to training, helping the next generation appreciate the long-term impact of their decisions.

Life beyond IP

Outside work, Simon is an enthusiastic walker, particularly in the Lake District, where he has been visiting since childhood and has completed all of the Wainwrights. Football also plays a big part in his life, both as a player in five-a-side matches and (with the rest of the family) as a supporter of Sunderland AFC.

These activities provide a welcome counterbalance to the demands of professional life, even if they sometimes have to be managed carefully alongside ageing knees and ankles.

Looking ahead

What continues to motivate Simon is the constant exposure to new technologies and the depth of long-term client relationships. Whether working with a familiar client or exploring a new disclosure, there is always something new to learn.

For those considering a career in patent law, his advice is to research the profession carefully and to join an organisation that is actively engaging with technological change, including the growing role of AI. Adaptability, he believes, will be as important in the future as experience has been in his own career.

Connect with Simon Kremer

Simon Kremer, Partner, European & UK Patent Attorney

Email Address: simon.kremer@mewburn.com

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About Mewburn Ellis

Mewburn Ellis is a leading European IP firm helping businesses protect and maximise the value of their innovations, brands, and technologies. With over 360 professionals across five European offices, the firm provides strategic, commercially focused advice across patents, trade marks, designs, disputes, and IP law.

Learn more at: https://www.mewburn.com/

About PatWorld Ltd

PatWorld is a specialist intellectual property search firm based in the UK, providing expert patent, design, and trade mark searching services worldwide. With a strong focus on accuracy, insight, and practical support, PatWorld assists IP professionals, law firms, and organisations in making informed IP decisions.

Learn more at: https://www.patworld.com

Patent, Design & Trademark Search enquiries: mail@patworld.comPatent Search courses: elearning@patworld.comTelephone: +44 (0) 1633 816601