Cell Therapy

We are delighted to be working with innovative companies and academic institutions in the exciting field of cell therapy. We leverage our huge depth of experience in the fields of monoclonal antibody technology, cellular biology, immunology and regenerative medicine to build robust, investable patent portfolios for our clients in this space. While applying our wealth of existing knowledge, we are also alive to the fact that new technologies require fresh thinking and an innovative approach to patent protection.

We understand the importance of considering the practicalities of the production and administration of the therapeutic agent(s) at the earliest possible stage, and work with closely with our clients to understand that fine details of the technology and develop an appropriate supporting global patent strategy. For example, in the field of adoptive cellular therapy, strategy for protecting an autologous cell therapy, in which the therapeutic ‘product’ to be administered is a personalised product derived from a patient’s own cells requires a different approach to protecting an allogeneic cell therapy (towards which the field is increasingly moving), which in some aspects is closer to a traditional ‘off-the-shelf’ product.

We have considerable experience in drafting and prosecuting patent applications relating to innovative cell therapies, including for novel CAR/TCR molecules, new platform approaches and innovations relating to the production, expansion and medical use of cell therapies. As earlier generation products continue to mature through clinical trials, we also help our clients to protect innovation throughout the product lifecycle, for example with patent applications related to personalised medicine or new dosage regimes. We also help our clients to navigate the dynamic and increasingly complex patent landscape in the field of cell therapy, strategising with them to minimize the risk presented by patents held by third parties.

Mewburn Ellis is very proud to be working with the entities operating right at the cutting edge of innovation in this exciting field, developing the new platform technologies, designing novel recombinant molecules (CARs, TCRs, etc.) and moving into new disease frontiers (solid cancers, autoimmune disease, viral disease), that will re-shape the therapeutic landscape for the years to come.

Open Pages of Validation Strategies for Pharmaceutical Patents in Europe Report

Validation Strategies for Pharmaceutical Patents in Europe

Special Report

The decision on where to validate a pharmaceutical European patent is a big one. With costs often precluding an “everywhere” approach for small- to medium-sized companies, research institutions and universities, it is necessary to choose from the long list of available countries. The choice typically factors in costs, business interests, likely markets and market size, possible manufacturing and import locations and the regulatory framework in Europe.

This report explores these choices and factors using publicly available data, seeking to answer questions such as:

  • Which countries are most commonly picked by patent holders at the EPO?
  • Is the distribution the same for pharmaceutical patents?
  • Where does “big pharma” choose to validate?
  • What factors might affect the choice of countries?
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Read our blogs

Careful with that saisie application

Careful with that saisie application

by Matthew Naylor

2025 Week 52 They can be conveniently bundled together informally as “provisional measures” at the UPC. But orders for preserving evidence (saisie orders) and preliminary injunctions are different in ...

When success does not mean survival – Generics knock out Sanofi’s cancer drug patent at the UPC

When success does not mean survival – Generics knock out Sanofi’s cancer drug patent at the UPC

by Julie Carlisle

2025 Week 51 Generic pharmaceutical companies scored their first big win at the UPC last week, with the Munich Local Division (LD) revoking Sanofi’s patent EP 2493466 B1 for a medical use of the ...

The Vaginal Microbiome – the hidden key to success in IVF?

The Vaginal Microbiome – the hidden key to success in IVF?

by Natalie Vaughan

In vitro fertilisation (IVF) as the names suggests, is a fertility treatment where an egg is fertilised by a sperm outside of the body. For many couples diagnosed with infertility, IVF offers hope of ...

30 months in – UPC case load, locations and languages

30 months in – UPC case load, locations and languages

by Matthew Naylor

2025 Week 50 A niche skill of patent attorneys is to be able to think in blocks of 30 months. The UPC opened its doors for business on 1 June 2023 and the 30 month milestone duly rolled around at the ...

UPC first instance decisions on inventive step after Court of Appeal guidance

UPC first instance decisions on inventive step after Court of Appeal guidance

by Matthew Naylor

2025 Week 49 Last week, we reported on the landmark Amgen v. Sanofi / Regeneron and Edwards v. Meril 25 November 2025 decisions from the UPC Court of Appeal (CoA), which together set out the ...

UPC Weekly - Court of Appeal settles the UPC framework for inventive step

UPC Weekly - Court of Appeal settles the UPC framework for inventive step

by Matthew Naylor

2025 Week 48 If you only read one UPC decision this year, read one of these. You can take your pick, based on technical background. Amgen v. Sanofi / Regeneron is in the field of antibodies for ...

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Forward Magazines Overlapping 8

Mewburn Ellis

FORWARD MAGAZINE

Mewburn Ellis Forward is a biannual publication that celebrates the best of innovation and exploration. Through its pages we hope to inform and entertain, but also to encourage discussion about the most compelling developments taking place in the scientific and entrepreneurial world. Along the way, we’ll engage with the IP challenges that international organisations face every day.