definiens: shall mean all cash license fees received by CBL or an Affiliate upon execution of a sublicense between CBL or an Affiliat e with a Sublicensee relating to Products ( net of withholding taxes or other tax -related reductions in accordance with Section 4.F(iii ) herein ), or equity ( including options to purchase equity ) in the Sublicensee that CBL or an Affiliate receives upon exec ution of such a sublicense in lieu of such a cash license fee . It is understood that Sublicense Fees shall not include royalties, advances against future royalties, Product development funds, equity investments, or scientific benchmark payments or payments for past research expenditures relating to development of Products . In addition, it is understood that this Section 4.D shall not be deemed to require CBL to share with CCF any cash or equity received by CBL in connection with an acquisition by a third pa rty of all or substantially all of the business or assets of CCF to which this Agreement pertains