EXHIBIT 32.1

Certificate of Chief Executive Officer
Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

        In connection with the quarterly report of Nano-Proprietary, Inc. (the “Company”) on Form 10-QSB for the quarter ended September 30, 2003, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Marc W. Eller, the Chief Executive Officer of the Company,certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

        1.     The Report fully complies with the requirements of Section 13 (a) or 15 (d) of the Securities Exchange Act of 1934; and

        2.     The information contained in this Report fairly presents, in all material respects, the financial conditions and results of operations of the Company.

Date:       October 30, 2003   /s/ Marc W. Eller
Marc W. Eller
Chairman and Chief Executive Officer