Amazon Hits Back At IBMAmazon Hits Back At IBM

Amazon.com last week responded in kind to a patent infringement lawsuit IBM filed in October. CEO Jeff Bezos' company is countersuing, alleging in court documents that it's "actually IBM that is using Amazon.com's technology without permission, not vice versa." IBM sued Amazon in October in U.S. District Court, claiming Amazon's online customer recommendation system and other features on its site violate IBM patents governing a broad swath of e-commerce techniques.