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Surveys in Patent Infringement Litigation: The Next Frontier

By Krista Holt, Michael Milani, and John Mallonee
April 28, 2006

Most experienced intellectual property attorneys understand the significant role surveys play in trademark infringement and other Lanham Act cases, but relatively few are likely to have considered the use of such research in patent infringement matters. That could soon change in light of the recent admission of a survey into evidence in Applera Corporation, et al. v. MJ Research, Inc., et al., No. 3:98cv1201 (D. Conn. Aug. 26, 2005). The survey evidence, which showed that 96% of the defendant's customers used its products to perform a patented process, was admitted as evidence in support of a claim of inducement to infringe. The court admitted the survey into evidence over various objections by the defendant, who had argued that the inducement claim could not be proven without the survey.

Although the survey evidence in Applera v. MJ Research was admitted as relevant to a determination of liability, the potential exists for surveys to provide evidence relevant to the determination of damages as well. Surveys could potentially provide relevant evidence on numerous aspects of patent damages assessment. For example, market demand, user preferences for the patented features, and the attractiveness of alternatives are all areas in which surveys could provide useful information in the formation of an expert opinion on patent damages.

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