21 February 2022 Priya Vaidya 771 Case Updates Tehrani v Hamilton Bonaduz AG [2021] EWHC 3457 (IPEC) byPriya Vaidya The case: The claimant (“Professor Tehrani”) is the proprietor of UK Patent No. 2,424,721 (“the Patent”). The Patent has the title “Method and apparatus for controlling a ventilator”, the ventilator being of the type used to assist a patient to breathe by delivering oxygen and removing carbon dioxide. The defendants (collectively “Hamilton”) make and sell ventilators. Some of the ventilators incorporate what is called the “Intellivent-ASV System”. Professor Tehrani alleges that the marketing of the Invellivent-ASV System has infringed the Patent. Hamilton deny infringement and counterclaim for revocation of the Patent on the grounds of lack of novelty, lack of inventive step and insufficiency. To continue reading you must be an EWI member, become a member and access exclusive content. Already a member? Login Share Print Tags 05. Rules and Regulations10. Report Writing14. Giving Oral Evidence Related articles Preliminary (pre-report) experts’ meetings A Day in the Life of a Medicolegal Expert Witness Solicitors Regulation Authority Ltd v Khan & Ors [2024] EWCA Civ 531 Pfizer Inc v Uniqure Biopharma BV [2024] EWHC 2672 (Pat) How not to use AI in expert evidence Switch article Original Beauty Technology Co. Ltd v G4K Fashion Ltd [2021] EWHC 3439 (Ch) Previous Article United States of America v Assange [2021] EWHC 3313 (Admin) Next Article Comments are only visible to subscribers.