The fourth edition of Intellectual Property in Hong Kong is the go-to tool for practitioners, academics, students and interested persons to stay on top of the latest developments in Hong Kong intellectual property law. The Copyright Ordinance has recently been updated to deal with the internet era and amendments to the law in relation to artificial intelligence are being considered. New in this edition: a new section on the reciprocal enforcement of intellectual property judgments between Hong Kong and Mainland China, discussion of the Madrid Protocol due to come into force in Hong Kong, large updates to copyright and patents divisions to reflect developments of case law, updates to IP and Arbitration, and a rewrite of the section on joint tortfeasorship following the UK Supreme Court's re-statement of the law.