Development and Commercialization Subject to Sections 4.6 and 4.7, Fibrocell shall be solely responsible for the development and Commercialization of Fibrocell Products and Improved Products. Fibrocell shall be responsible for all costs incurred in connection with the Fibroblast Program except that Intrexon shall be responsible for the following: (a) costs of establishing manufacturing capabilities and facilities in connection with Intrexon’s manufacturing obligation under Section 4.6 (provided, however, that Intrexon may include an allocable portion of such costs, through depreciation and amortization, when calculating the Fully Loaded Cost of manufacturing a Fibrocell Product, to the extent such allocation, depreciation, and amortization is permitted by US GAAP, it being recognized that the majority of non-facilities scale-up costs cannot be capitalized and amortized under US GAAP); (b) costs of basic research with respect to the Intrexon Channel Technology and Intrexon Materials (i.e., platform improvements) but, for clarity, excluding research described in Section 4.7 or research requested by the JSC for the development of a Fibrocell Product or an Improved Product (which research costs shall be reimbursed by Fibrocell); (c) [*****]; and (d) costs of filing, prosecution and maintenance of Intrexon Patents. The costs encompassed within subsection (a) above shall include the scale-up of Intrexon Materials and related active pharmaceutical ingredients for clinical trials and Commercialization of Fibrocell Products undertaken pursuant to Section 4.6, which shall be at Intrexon’s cost whether it elects to conduct such efforts internally or through Third Party contractors retained by either Intrexon or Fibrocell (with Intrexon’s consent).