The Client Access Portal will not be accessible from Friday 25 September at 17:00 BST until Monday 28 September due to essential maintenance works. We apologise for any inconvenience caused.

In the latest development to the referral regarding whether post-published evidence can be used to prove the existence of a technical effect, the Enlarged Board of Appeal have scheduled the G 2/21 hearing for 24 November 2022.  We will be reporting on the result as soon as it is available.  In the meantime, read our primers on the background to the referral and likely consequences of the decision.