definiens: shall mean : a ) Patent applications ( including provisional patent applications and peT patent applications ) and/or pat.ents listed in Appendix A, all divisions and continuations of these applications, all patents issuing from such application s. divisions, and continuations, and any reissues, reexamination s, and extensions of all such patents ; b ) to the extent that the following contain one or more claims directed to the invention or invention s disclosed in a ) above : PHS Patent license Agreement -Nonexclusive CONFIDENTlAL L-176·99/0 Mode 1980611 Page 2 FlNAL A1taRexCorp . September 9,1999 • i ) continuations - in - part of a ) above ; Ii ) all divisions and continuations of these continuations - in - part ; iii ) all patents issuing from such continuations - in - part, divisions, and continuations ; iv ) priority patent application(s ) of a ) above ; and v ) any reissues, reexaminations, and extensions of all such patents ; c ) to the extent that the following contain one or more claims directed to the invention or inventions disclosed in a ) above : all counterpart foreign and U.S. patent applications and patents to a ) and b ) above, including those listed in Appendix A