Defendant's motion to disqualify plaintiff's counsel was granted where the disqualified law firm employed an attorney who previously represented defendant. "[The attorney] was involved in patent prosecution work for the accused product. . . . He performed a non-infringement analysis as part of the process. . . . It appears quite clear that [his] work on the [defendant's product] bears a substantial relationship to the issues in this case that involve prior art. [Plaintiff] used the [defendant's] patents for the [defendant's product] as evidence in the claim construction process. That also tends to support a substantial relationship finding."
Sunbeam Products, Inc. v. Hamilton Beach Brands, Inc., et al., 3-09-cv-00791 (VAED July 22, 2010, Memorandum & Opinion) (Payne, J.)