The Editors and Contributors to Terrell on the Law of Patents at Three New Square are pleased to announce the publication of the First Supplement to the Twentieth Edition.  Under the editorship of Douglas Campbell KC and Tim Austin with contributions from Stuart Baran, Miles Copeland, Joe Delaney, Alice Hart, Jeremy Heald, Tom Hinchliffe KC, Thomas Lunt, Georgina Messenger, Tom Mitcheson KC, Katherine Moggridge, Geoffrey Pritchard KC, Daniel Selmi and Andrew Waugh KC, this brings the main work up to date with commentary on all aspects of patent law including the most fertile areas of legal development in FRAND and AI case law.