Growth Stock Northern Technologies ( NTIC $12.00 ) Northern Technologies is the leading provider of systems that prevent rust and corrosion while products are in transit. The company's unique packaging releases a protective vapor that protects steel and other ferrous metals from the elements. Northern Tech also sells packaging that inhibits oxidation on aluminum, copper, and brass. The packaging is removed once the products reach their final destination. The protective vapor molecules disappear within two hours, leaving a pristine final product. Northern Tech invented the technology before the turn of the century. The basic patent has expired. The company continues to hold an estimated 50%-75% of the market, though, due to superior marketing, customer service, product development, and dependability. Customers include a large proportion of the S&P 500 universe. Competition consists mainly of local op...