http://www.oceantomo.com/ http://www.earthtimes.org/articles/show/news_press_release,10171.shtml The Index is designed to represent a group of companies that own high-quality patent portfolios. The Index selection methodology identifies six companies within each of 50 size and style groups, reflecting a broad spectrum of market capitalizations and investment styles, including value, relative value, blend, growth at a reasonable price (GARP) and growth by decile, that have the highest ratio of patent value to book value. The analytical engine used to evaluate the value of each company's patent portfolio is Ocean Tomo's PatentRatings(TM) software, which calculates the relative attractiveness of the more than 4 million patents issued by the U.S. Patent and Trademark Office since 1983 and which is widely recognized by the intellectual property valuation industry