In a recent decision from the Eastern District of Texas, the court allowed the testimony of an expert witness on the entire market value theory even though the expert did not provide evidence of consumer demand. The court found that the expert could use the entire market value theory of the accused products in calculating the reasonable royalty because it was economically justified.
The court began by noting that the “entire market value rule” allows for the recovery of damages based on the value of an entire apparatus containing several features, when the feature patented constitutes the basis for the customer demand. Defendants moved to exclude plaintiff’s expert on the ground that the patented feature of the accused product had not been shown to provide the basis for consumer demand. The defendants also argued that it was largely undisputed that, in fact, the patented feature did not provide the basis for the consumer demand of the accused product. The plaintiff argued that the expert was justified in calculating a reasonable royalty based on the entire market value of the accused products as that is the industry standard and because nearly every comparable license in the case was based upon a percentage of the total accused product (or licensed product) sales price.
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