(a) Ownership of Intellectual Property in any drawings, documents, any other information, samples, models, patterns, ideas, policies, procedures, methods, processes, materials or any other tangible or intangible thing required by this Agreement existing prior to the date of this Agreement relating to or connected with the Works (Pre-existing Intellectual Property Materials) remains with the Participant who created the Pre-existing Intellectual Property Materials.
(b) The NOPs grant to the Project Owner an irrevocable, non-exclusive, world-wide, perpetual, transferable, sub-licensable, royalty free licence to use the Intellectual Property in the NOPs' Pre-existing Intellectual Property Materials for:
(1) the Works and for any operation, maintenance, upgrade, augmentation, selling or decommissioning of the Project; and
(2) otherwise, only to the extent necessary to use the Intellectual Property Assets (as that term is defined in clause 27.3(a)).
(c) The Project Owner grants to the NOPs an irrevocable, non-exclusive, world-wide, perpetual, transferable, sub-licensable, royalty free licence to use the Project Owner's Pre-existing Intellectual Property Materials for the Works and for any operation, maintenance, upgrade, augmentation, selling or decommissioning of the Project.
(d) The Participants must do everything necessary to effect the grant of the licences set out in clauses 27.1(b) and 27.1(c) and the ALT must decide the manner in which any costs associated with that vesting will be borne by the Participants.