This is a rare patent malpractice case. According to the court, the plaintiff alleged that the lawyers failed to properly file and amend various patent claims and that the errors of the lawyers caused them economic damages. The lawyer defendants moved to dismiss on the ground that the plaintiff had not adequately alleged proximate causation. In particular, the defendants argued that the alleged errors did not cause plaintiff any economic damages. The court disagreed, holding that the plaintiff pleaded lost licensing revenue and royalties.