Protein

Therapeutics

We have extensive experience drafting and prosecuting patent applications in the field of engineered peptide therapeutics, gaining insight into the different challenges that working in this area raises as compared to patenting antibody or polypeptide therapeutics. Our experience includes work on portfolios covering approved and candidate peptide therapeutics, such as Lixisenatide, Danegaptide, Glepaglutide and Dasiglucagon.

Many of these challenges revolve around the evolution of an initial wild-type peptide to become a candidate peptide therapeutic, modifying or truncating the wild-type peptide and often incorporating other types of derivatisation and cyclisation to optimise the properties of the therapeutic molecule. This work requires an understanding of underlying biochemistry and chemistry of the molecules.

In addition, the team at Mewburn Ellis working in this area have extensive experience of freedom-to-operate analysis, EPO opposition and appeals and other strategies to manage the competitive landscape, while maximising the protection of the products of the applicants we represent.

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Opposition Trends in the Life Sciences Sector

Special Report

In spring 2019, Mewburn Ellis undertook 350 hours of research, analysing more than 5,000 opposition cases filed at the European Patent Office over the last ten years, studying the timelines for hundreds of life sciences oppositions both before and after the EPO’s opposition streamlining initiative.

View the 2020 addendum for this report, based on information as it appeared on the EPO Register on 10 January 2021 and from bulk data sets extracted on this date.

Download the Report

Read our Blogs

Revolutionising Immunotherapy: The Promise of TCR T-Cells

Revolutionising Immunotherapy: The Promise of TCR T-Cells

by Katherine Collins

For the past 10 years or so, the focus in the adoptive T-cell therapy space has been on chimeric antigen receptor (CAR) T-cells, with several CAR T-cell products successfully being brought to market ...

Unlocking immortality: the innovations driving human longevity

Unlocking immortality: the innovations driving human longevity

by Sean Constable

Science has made great strides in dramatically increasing life expectancy. In the 1900s, the average life expectancy at birth was around 45 to 50 years, while today there is a global life expectancy ...

A Meaty Victory for Impossible Foods

A Meaty Victory for Impossible Foods

by Adam Gregory

In decision T 0425/23 of 20 December 2024, the European Patent Office (EPO) Board of Appeal (BoA) served up a significant win for Impossible Foods, upholding a key patent covering their heme-based ...

The power of Bioprocess Engineering

The power of Bioprocess Engineering

by Anja Koller

Microorganisms wield the power to revolutionise industries and address global challenges. These "little factories" are central to the production of a diverse array of high-value products across ...

Quantum and the law - a new special report

Quantum and the law - a new special report

by Joanna Smith

We are delighted to release our latest report Quantum and the law. View the report here.

UPC Weekly - Alexion v Samsung & Amgen – Patentee’s attempted U-turn on claim interpretation foiled by UPC Court of Appeal

UPC Weekly - Alexion v Samsung & Amgen – Patentee’s attempted U-turn on claim interpretation foiled by UPC Court of Appeal

by Eliot Ward

2025 Week 2 Tailoring one’s claim interpretation for the jurisdiction at hand can be a canny way of maximizing your patent’s footprint. You can argue a narrow interpretation during grant and validity ...

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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.