IP-2022-000067 - [2025] EWHC 399 (IPEC)

Prevayl had two expert witnesses. Dr Jacob Skinner is the Chief Technology Officer of two startups, one in the UK and the other in California. He has a background in electronics which has included the development of wearable technology businesses. Piers Thomas has been the Creative Director of a design and development consultancy for the last 24 years and has much experience in the design of garments, including those worn by athletes. Dr Skinner and Mr Thomas produced a joint expert report with another in reply. Both reports were set out to show which parts of the evidence were being given by which expert.

Whoop fielded one expert, Professor Monica Schraefel. She is Professor of Computer Science and Human Performance at the University of Southampton. Professor Schraefel’s research is principally concerned with developing and evaluating technologies which improve human health and quality of life.

All three experts were excellent witnesses.