<ARTICLE> 5 <CURRENCY> U.S. DOLLARS <PERIOD-TYPE> 6-MOS <FISCAL-YEAR-END> DEC-31-1998 <PERIOD-START> JAN-01-1998 <PERIOD-END> JUN-30-1998 <EXCHANGE-RATE> 1 <CASH> 570,209 <SECURITIES> 28,630,202 <RECEIVABLES> 555,380 <ALLOWANCES> 85,000 <INVENTORY> 1,115,005 <CURRENT-ASSETS> 30,992,258 <PP&E> 3,600,331 <DEPRECIATION> 1,117,473 <TOTAL-ASSETS> 33,663,727 <CURRENT-LIABILITIES> 1,420,010 <BONDS> 0 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 48,475,202 <OTHER-SE> (16,231,485) <TOTAL-LIABILITY-AND-EQUITY> 33,663,727 <SALES> 778,228 <TOTAL-REVENUES> 921,712 <CGS> 1,656,707 <TOTAL-COSTS> 4,040,392 <OTHER-EXPENSES> 0 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 0 <INCOME-PRETAX> (2,330,814) <INCOME-TAX> (156,000) <INCOME-CONTINUING> (2,486,814) <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> (2,486,814) <EPS-PRIMARY> (0.20) <EPS-DILUTED> (0.20)