In this patent infringement action, plaintiff Hoyt Fleming (“Fleming”) moved to strike certain paragraphs of the report of Escort’s expert on its defense of non-infringement. One of Escort’s defenses to the charge of infringement was that Escort’s devices lock out false signals by using a process different from that described in Fleming’s patents. Escort asserted that false signals are locked out of Fleming’s invention when the device reaches a predetermined distance from the predetermined position of a false signal, but with Escort’s devices, the distance from a lockout varies.
Accordingly, as the district court explained, “Escort’s expert, Dr. Grindon, concluded, among other things, that ‘the asserted claims of the ‘038 patent are not infringed’ by Escort’s devices. Id. at pp. 1-8. In his claim-by-claim analysis set forth in that Supplemental Report — at paragraphs 21 through 42 — he concludes that Escort’s products do not infringe claims 1, 3, 5, 6, 7, 8, 23, 25, 26, and 27 of the ‘038 patent because those claims describe a device that locks out an alert if the device is a predetermined distance from a predetermined false signal, while with the Escort products, ‘the distance from a lockout varies.’ Id.”
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