0001035704-02-000421 S-1/A 4 20020809 ASPENBIO INC 0001167419 2835 841553387 CO 1231 S-1/A 33 333-86190 02724767 8100 SOUTHPARK WAY UNIT B 1 LITTLETON CO 80120 3037942000 8100 SOUTHPARK WAY BUILDING B LITTLETON CO 80120 S-1/A 1 d95933a3sv1za.txt AMENDMENT NO. 3 TO FORM S-1 EX-16 3 d95933a3exv16.txt LETTER REGARDING CHANGE IN CERTIFYING ACCOUNTANT EX-23.1 4 d95933a3exv23w1.txt CONSENT OF LARRY O'DONNELL, CPA, P.C. EX-23.2 5 d95933a3exv23w2.txt CONSENT OF CORDOVANO AND HARVEY, P.C.