From an SEC filing made by Amazon this past week:
On July 17, 2003, Pinpoint, Inc. filed a complaint for patent infringement in the United States District Court for the Northern District of Illinois against us and several other companies with which we have commercial agreements. The original complaint was dismissed without prejudice in December 2004, but the lawsuit was re-filed in March 2005 in the same court. The complaint alleged that our personalization technology infringed patents obtained by Pinpoint and sought injunctive relief, monetary damages in an amount no less than a reasonable royalty, treble damages for alleged willful infringement, prejudgment interest, and attorneys’ fees against all defendants. On May 27, 2005, following a court ruling on the scope of the asserted patents, the plaintiff decided to drop the case and dismissed all claims with prejudice.
Thanks to ZDNet for pointing this out.