Making amendments after grant

If someone has objected to your patent, in order to overcome the objections you might decide to amend it. If you are involved in proceedings in the court or at the UK Intellectual Property Office, you can file amendments under section 75 of the Patents Act 1977. If you are not involved in proceedings and still want to amend your patent, you can file amendments under section 27.

Section 75 before the court

To amend a patent under section 75 before the court, you need to file an Application Notice. This consists of Court Form N244, full details of the amendments you wish to make and the reasons for making them, including whether you consider the claims of the patent to be valid prior to any amendment being made. You need to send this to the court in paper form along with the fee. You also need to send us a copy. If possible, you should send us a copy electronically.

Section 75 before the Comptroller

To amend a patent under section 75 in the UK Intellectual Property Office, you need to send us details of the amendments and if possible, you should send us these electronically.

Section 27

To amend a patent under section 27 provide details of the amendments and the reasons for these in paper form. If possible, you should send us details of the proposed amendments and the reasons for these electronically.