(including Section 2.4.2) to the same extent as if Licensee granted such sublicense directly.
(b) In each sublicense agreement, the Sublicensee must be required to comply with the terms and conditions of this Agreement to the same extent as Licensee has agreed and must acknowledge that Licensor is an express third party beneficiary of such terms and conditions under such sublicense agreement.
(c) The official language of any sublicense agreement shall be English.
(d) Within **** after entering into a sublicense, Licensor must receive a copy of the sublicense written in the English language for Licensors records and to share with the ReGenX Licensors. The copy of the sublicense may be redacted to exclude confidential information of the applicable Sublicensee, but such copy shall not be redacted to the extent that it impairs Licensors (or the ReGenX Licensors) ability to ensure compliance with this Agreement; provided that, if either of the ReGenX Licensors requires a complete, unredacted copy of the sublicense, Licensee shall provide such complete, unredacted copy.
(e) Licensees execution of a sublicense agreement will not relieve Licensee of any of its obligations under this Agreement. Licensee is and shall remain **** to Licensor for all of Licensees duties and obligations contained in this Agreement and for any act or omission of an Affiliate or Sublicensee that would be a breach of this Agreement if performed or omitted by Licensee, and Licensee will be deemed to be in breach of this Agreement as a result of such act or omission.
2.5.1 Licensee hereby grants to Licensor a non-exclusive, worldwide, royalty-free, transferable, sublicensable, irrevocable, perpetual license:
(a) to use any Licensed Back Improvements (and any intellectual property rights with respect thereto) consummate in scope to the Retained Rights, and
(b) to practice the Licensed Back Improvements (and any intellectual property rights with respect thereto) in connection with AAV9, including the right to research, develop, make, have made, use, offer for sale, and sell products and services; provided that Licensor shall have no right, under the license in this Section 2.5.1(b), to practice the Licensed Back Improvements in the Field.
2.5.2 For purposes of this Agreement, Licensed Back Improvements means any patentable modifications or improvements developed by Licensee, any Affiliates, or any Sublicensees to any vector that is the subject of a claim within the Licensed Patents.
****CERTAIN INFORMATION HAS BEEN OMITTED AND FILED SEPARATELY WITH THE COMMISSION. CONFIDENTIAL TREATMENT HAS BEEN REQUESTED WITH RESPECT TO THE OMITTED PORTIONS.