definiens: means ( a ) any and all patent applications that describe, claim, cover or relate to theProduct that ( i ) are Controlled by Solvay and are filed prior to or during the term of this Agreement in the United States or anyforeign jurisdiction, including without limitation any addition, application, continuation, continuation - in - part, continuedprosecution application or division thereof or any substitute application therefore and ( ii ) claim an invention that isreasonably required or useful for the clinical development, use, registration, manufacturing, packaging, commercialization orsale of the Product ; ( b ) any patent issued from any such patent application, ( c ) any reissue, extension, reexamination or patentterm extension of any such patent ; and ( d ) any other U.S. or foreign patent or inventor ’s certificate Controlled by Solvay, thatclaims inventions reasonably required or useful for the clinical development, use, registration, manufacturing, packaging, commercialization or sale of the Product