1.1. Revocation of Covenant Not to Revoke/Invalidate/Oppose. If HOYU, any assignee of PATENT RIGHTS, or licensee of PATENT RIGHTS, SUES any PROTECTED PARTY for any INFRINGING ACTIVITY in contravention to the covenant under Article 2 (Covenant Not to Sue), then the covenant under Paragraph 3.1 (Covenant Not to Revoke/Invalidate/Oppose) will immediately terminate.