definiens: means any and all Valid Claims Directed to HIV of United States and foreign patents and patent applications : ( a ) which are based upon inventions conceived or rights acquired [ * * * ] ( as defined below ) ; ( b ) are not CHIRON Licensed Patents ( as defined below ) ; ( c ) which claim H IV nucleic acid sequence(s ) or a method to use ( other than in the manufacture of peptides ) or detect such sequences specifically ; ( d ) which are owned by, licensed to or otherwise controlled by CHIRON or its Affiliates, with rights to license or sublicense ; and ( e ) with respect to which CHIRON has the right to grant the option provided for in Section 2.4 of this Agreement . For purposes of this Agreement, an invention will be deemed to have been conceived if there is a patent, patent application, written inve ntion disclosure statement or other tangible document ( whether or not witnessed ) describing such invention