Exhibit 99.1


           CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350 AS ADOPTED
            PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002


     In connection with the Quarterly Report of APA Optics, Inc. (the "Company")
on Form 10-Q for the period ending June 30, 2002 as filed with the Securities
and Exchange Commission (the "Report"), the undersigned Chief Executive Officer
and Chief Financial Officer of the Company hereby certify, pursuant to 18 U.S.C.
Sec. 1350, as adopted pursuant to Sec. 906 of the Sarbanes-Oxley Act of 2002
that based on their knowledge:  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 the Report fairly presents, in all
material respects, the financial condition and results of operations of the
Company as of and for the periods covered in the Report.



/s/ Anil K. Jain
- -------------------------------------------
Anil K. Jain, Chief Executive Officer



/s/ Robert M. Ringstad
- -------------------------------------------
Robert M. Ringstad, Chief Financial Officer


August 8, 2002


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