The patent on the Company's VCO was issued in the U.S. on November 4,
1986, in Canada on April 17, 1990, and by the European Patent Office on
April 3, 1992.  The U.S. patent will expire in 2005.  The Canadian patent
will expire in 2007 and the European patents will expire in 2006.  The
Company also owns U.S. patents for (i) a Broadband Mixer with Coplanar
Balun, expiring in 2000, (ii) a High Impedance Ratio Wideband Transformer
Circuit expiring in 2015, and (iii) a 1.2 Volt Voltage Controlled
Oscillator expiring in 2016.  During 1998, the Company received approval
from the U.S. Patent and Trademark Office on three new patents.  In early
1998, the Company's Unbalanced to Balanced High Impedance Ratio Wide-Band
Transformer Circuit, an improvement to the 1997 patented design used in
the conversion of light wave signals to and from radio frequency signals,
was approved.  This patent will expire in 2015.  In late 1998, the Company
was awarded two patents entitled "Orthoganal Mounted Substrate Resonator"
and "Continually Adjustable Resonator."  The development for these patents
was announced in the third quarter of 1997. The technology under these two
patents allows the Company to manufacture high frequency RF components, in
the range of three to six gigahertz, using low-cost, commercial materials
and processes while maintaining excellent performance.  The two patents
will both expire in 2017.