Act 3 Industrial Property Act 2014 (2) The arbitration board shall hear interested parties and deliver its ruling. (3) Where the parties fail to agree on the appointment of the chairperson, the chairperson shall be appointed by the Chief Magistrate’s Court which has jurisdiction in the area where the enterprise is located on the application of any party. PART XV—SURRENDER, REVOCATION AND INVALIDATION 89. Surrender. (1) The owner of a patent, utility model or an industrial design registration certificate may surrender it to the registrar. (2) The surrender may be limited to one or more claims of the patent or utility model, or, in the case of industrial designs, one kind of product or class of products. (3) The surrender shall immediately be recorded in the register and published by the registrar. (4) The surrender shall only be effective after it has been published. (5) If a licence is recorded in the register, surrender shall only be registered upon the submission of a declaration by which the licensee consents to the surrender, unless the licence has expressly waived the right to consent in the licence contract. 90. Revocation or invalidation. (1) An interested person may, in proceedings instituted by him or her against the owner of a patent, or a registered utility model or industrial design or in proceedings instituted against him or her by the owner, request the court to revoke or invalidate the patent, utility model or industrial design registration. (2) An interested person may, within twelve months from the date of publication of the grant of a patent, utility model or an industrial design, request the court to revoke or invalidate the patent, utility model or industrial design registration. 72