Many Internet companies have recently become involved in Internet business patent litigation. For example, Priceline.com sued Microsoft Corp. in September alleging that the software giant’s “Expedia Web” Internet travel service’s reverse auction hotel room service infringes upon a Priceline Internet auction patent.
In October, Amazon.com sued Barnes & Noble’s b&n.com over Amazon’s “One-Click” ordering system patent. A month later, DoubleClick Inc. sued L90 Inc. for allegedly infringing on DoubleClick’s Internet advertising technique patent.
