definiens: means ( a ) the patents and patent applications, together with any patents that may issue based thereon, set fOl"lh on Exhibit A ; ( b ) any other patents or patent applications now or - hereafter owned by or licensed to A VI that are necessary, appropriate or useful for designing, developing, processing, manufacturing, using, selling or delivering the Drug within the Field ; ( c ) aU continuation, divisional, re­issue, re - examination and substitution applicatioru ; that may be filed, before or during the term of this Agreement, by or - for - the bencfit of A VI based on the foregoing referen""d patents or patent application, together with any patents that may issue based thereon ; and ( d ) all foreign applications that may be filed, before or during tbe term of this Agreement, by or for the benefit of A VI based on the foregoing referenced patents and patent applications, together with all patents which may issue based thereon