definiens: means any unpatentable or unpatented developments, proprietary knowledge, ideas, speciﬁcations, prototypes, drawings, know - how, formulas, information, data, methods, processes, tools, designs, testing programs, expertise, concepts or techniques, and similarknowledge not known by Licensee prior to Licensor disclosing such knowledge to Licensee, solely to the extent that they are ( a ) pertinent to the LicensedPatents, ( b ) not subject to the exclusive rights of any third parties or research sponsor restrictions, ( c ) ( i ) in existence, and known to the Inventor ormembers of his laboratory(ies ), as of the Eﬀective Date or ( ii ) generated by or on behalf Licensor ( solely or jointly with others ) during the Term throughthe exercise of Licensor ’s retained rights under Section 2.4.1, including non - clinical and clinical data, and ( d ) applicable primarily within the Fields, furtherdescribed in Appendix A