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Webinar: Drafting for Success At the EPO: Practical Tips to Build a Stronger Portfolio

August 4, 2021 @ 9:00 am 10:00 am

This program offers 1 participatory MCLE credit.

Presented by the Patent Interest Group.

Anyone who has prosecuted patent applications before the European Patent Office (EPO) knows that what works at the USPTO does not necessarily ensure success at the EPO. European patent attorneys Tom Leonard and Mark Abthorpe will provide tips and tricks on dealing with issues and challenges unique to practice before the EPO, including overcoming added subject matter rejections, loss (or rather retention) of priority, avoiding self-collision, and avoiding double patenting issues. They will discuss filing and prosecution strategies to build a strong global portfolio.

Speakers: Mark Abthorpe and Tom Leonard

Moderator: Sanjesh Sharma

Mark Abthorpe is a Partner in the Life Sciences and Chemistry group at Kilburn & Strode with a broad, chemistry-based practice. He handles subject matter ranging from commercial-scale chemical synthesis to small-molecule pharmaceuticals and their medical uses. Mark has particular expertise in the contentious field of consumer products, in which he is regularly involved in multi-party oppositions and appeals at the EPO. He uses this front-line experience to help his clients build robust portfolios to secure their commercial interests.

Tom Leonard is a Partner in the Life Sciences and Chemistry group at Kilburn & Strode, specializing in biotechnology, therapeutics and diagnostics. Tom is an “antibody expert” (IAM Patent 1000, 2020 edition), but his experience also includes machine learning and digital health, chemotherapy, biomarkers and infectious diseases. His practice is also strong in the areas of vaccines, next generation sequencing and new uses for known compounds. As part of the UK industry’s “IP Inclusive” initiative, Tom is co-founder and co-chair of IP Out, the support and networking group for LGBT people working in IP.  In a previous life Tom studied Musical Theatre before the bright lights of the world of IP lured him away from the boards and into the world of being a patent attorney nearly 15 years ago.

We are committed to accessibility! Virtual events are equipped with closed captioning. To request an in-person accommodation, send us a note at or contact us at 916-516-1760 for assistance.


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