25 innovative companies by patent ranking

Not too long ago Businessweek published a list of the 25 most innovative companies in the world. Check out the slideshow to see who made the list. This particular ranking was compiled by Ocean Tomo an intellectual-property consulting firm. The firm sorted through U.S. patents granted to the world’s 1,000 biggest companies in the past four years. Ocean Tomo then assessed the patents’ value by tallying, among other things, patent filing trends, litigation rates, and how many times each was cited by other applicants or in scientific and technical journals.