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Jennifer specialises in complex patent prosecution and IP strategy in the chemical sector. Her practice focuses on the drafting of original patent applications, prosecution of patent applications before the EPO and UKIPO, representing clients in hearings at the EPO in pre-grant, opposition and appeal proceedings, advising on issues relating to supplementary protection certificates (SPCs), and the management of international patent filing and prosecution strategies. She also has significant experience of advising on infringement and validity issues and regularly assists clients with due diligence projects, particularly in the pharmaceutical sector.
In terms of technology, Jennifer works across the chemical field, with particular expertise in the areas of pharmaceutical chemistry, drug delivery formulations, prodrug technologies, synthetic methods, composite materials and polymers.
Jennifer works closely with clients ranging from SMEs and university technology transfer offices to multinational companies. Her expertise includes representing clients in the pharmaceutical sector at all stages of the drug development process, from invention capture and original patent drafting, through to managing complex patent portfolios for high value clinical trial candidates and marketed drug products.
Jennifer is recognised by IAM Strategy 300 as one of the world’s leading IP strategists.

"The standout individuals are Nick Bassil, Jennifer Harris, Sarah Lau, and Mark Abthorpe. All have excellent technical knowledge and are great communicators." - The Legal 500, 2023

"Gareth Fennell and Jennifer Harris provide valuable advice on IP strategy and legal counselling on IP related matters." The Legal 500, 2023

"Jennifer delivers clear and reliable advice. Discussions with her invariably add value and often lead to an improved strategy. Jennifer shows particular strength in delivering comprehensive patent strategies to ensure across-the-border protection. She has a keen tactical eye." - IAM Patent 1000, 2023

"Harris focuses on pharmaceuticals – her clients range from start-ups to multinationals and she ably handles the entire patent lifecycle." - IAM Patent 1000, 2022

"Jennifer Harris has shown particular strength in identifying appropriately balanced patent strategies and claim structures to provide broad and strong composition of matter IP protection." - The Legal 500, 2022

IAM Strategy 300: The World’s Leading IP Strategists has recognised Jennifer Harris in the 2021 rankings.

'Recommended' in IAM Patent 1000 2021 edition.


European Patent Attorney
Chartered UK Patent Attorney
IP Litigator - Patent
Representative before the Unified Patent Court (UPC) (2024)
BSc (Double Hons) Chemistry and Biochemistry - University of Southampton


​Chartered Institute of Patent Attorneys (CIPA)
The Institute of Professional Representatives before the European Patent Office (EPI)
Royal Society of Chemistry - Member of Law Group Committee