system: You are a contract-analysis assistant performing a span-extraction task. You are given an excerpt from a commercial contract and the name of a clause type to locate within it.

Return the exact text of the requested clause, copied verbatim from the excerpt — identical wording and punctuation, with no paraphrasing, summarising, explanation, or added commentary.

The excerpt is one window of a much longer contract and often will not contain the requested clause. If the requested clause does not appear in this excerpt, respond with exactly: Not found.

Output only the extracted clause text, or the exact string `Not found.` — nothing else.

user: Contract excerpt:
"""
During the Lease Term, PPI shall: (i) assume the risk of loss or damage to the Transferred Equipment; (ii) maintain the Transferred Equipment in good operating condition and appearance, ordinary wear and tear excepted; (iii) comply with all requirements necessary to enforce any warranty rights and to maintain eligibility for any manufacturer maintenance program; (iv) promptly repair any repairable damage to the Transferred Equipment and (v) maintain property damage and liability insurance and insurance against loss or damage to the Transferred Equipment as part of PPI's general liability insurance. (j) If any of the Transferred Equipment is lost, stolen, destroyed, damaged beyond repair or in the event of any condemnation, confiscation, seizure or expropriation of any Transferred Equipment ("Casualty Transferred Equipment"), PPI shall promptly (i) notify EKR of the same, and (ii) pay to EKR an amount equal to the estimated in-place, fair market value of the Casualty Transferred Equipment as of the date of the loss, as determined by a mutually agreed nationally recognized -23- appraiser; provided that (i) in the event there are any amounts owed to PPI under the Promissory Note as of the date of such loss, PPI shall have the right, at its option, to offset against the unpaid balance of principal and interest under the Promissory Note, the amounts owed to EKR pursuant to this Section 3.20(k), and (ii) in no event shall PPI be required to pay EKR an amount that exceeds [**] Dollars ($[**]) plus the amounts paid by EKR pursuant to the Promissory Note. (k) Subject to Sections 3.20(d) and (e) and Section 6.3(d) and PPI's right to repurchase the Transferred Equipment thereunder, upon the expiration or earlier termination of the Lease Term, EKR shall remove the Transferred Equipment from PPI's premises (unless EKR at its option elects to retain the Transferred Equipment at PPI's premises in connection with EKR's exercise of step-in rights under Section 17.5). PPI agrees to cooperate with EKR in the removal of the Transferred Equipment, including providing the necessary access to the Transferred Equipment and the facilities where it is located at times mutually agreed by the Parties, such agreement not to be unreasonably withheld or delayed by either Party. (l) Upon termination of the Lease Term, unless PPI has repurchased the Transferred Equipment, EKR will, at PPI's request, use commercially reasonable efforts to (i) supply the Product and (ii) supply placebo for [**], to PPI's other licensees and collaborators outside the Territory, excluding PPI and any of its Affiliates (the "Other PPI Customers"), in each case in accordance with the commercially reasonable requirements of any existing agreements between PPI and such Other PPI Customers, subject to EKR's receipt of payment required under such agreements for supplying such Products and/or other products. PPI will use commercially reasonable efforts to cooperate with EKR so as to enable EKR to supply Product and, if applicable, other products, to such Other PPI Customers. -24- 4. Undertakings of EKR. 4.1 Marketing Authorizations. EKR shall, as determined in its sole discretion to be commercially reasonable, prepare studies of the markets and sales potential of the Products for countries in the Territory other than the United States and present such studies to the Committee. EKR shall at its own cost and expense use commercially reasonable efforts to take those steps reasonably necessary in order to obtain and thereafter maintain Marketing Authorizations (including pricing and reimbursement approvals) for the Product in those countries of the Territory other than the United States which the Committee determines to present commercially viable opportunities for the Product. EKR shall provide PPI with a copy of any original certificates of approval/registration in each country in the Territory other than the United States. EKR shall provide PPI with a copy of any other registration matters received from the appropriate Regulatory Authorities concerning maintenance, renewal or variations to the original certificates of approval/registration in each country in the Territory. Except as provided in Section 3.17, EKR shall be solely responsible for, and shall bear all costs associated with, all regulatory activities related to the development and approval of the Product in the countries of the Territory (including, after the Agreement Date, the United States) and shall own the Marketing Authorizations for the Product in each other country of the Territory. EKR will comply with all conditions and requirements attaching to such Marketing Authorizations. 4.2 Liaison with Regulatory Authorities. Pursuant to Section 4.1 above, EKR shall at its own cost and expense liaise with the relevant Regulatory Authorities in respect of
"""

Extract the exact clause related to "Joint Ip Ownership" from the excerpt above.