IBM filed a lawsuit against Zillow, accusing the real estate giant of piggybacking off its patented technology to build key parts of its home value estimation and search features. The seven patents at the center of the suit cover a variety of different technologies, but the ones that stand out most deal with using computing power to analyze the quality and desirability of a geographic area and list-based searches that let users see the results on a map that fits within their screen.
Read the article: GeekWire
