0000950131-02-003237 10-Q 4 20020630 20020814 NANOPHASE TECHNOLOGIES CORPORATION 0000883107 3390 363687863 IL 1231 10-Q 34 000-22333 02735665 453 COMMERCE ST BURR RIDGE IL 60521 6303231200 453 COMMERCE STREET BURR RIDGE IL 60521 10-Q 1 d10q.htm FORM 10-Q EX-10.23 3 dex1023.txt COOPERATION AGREEMENT EX-99.1 4 dex991.txt CERTIFICATION OF CEO EX-99.2 5 dex992.txt CERTIFICATION OF CFO