MedIdea sued Depuy for patent infringement connected with total knee replacement prostheses in the Northern District of Illinois. Following the TC Heartland decision, the case was transferred to Massachusetts, where it has undergone contentious discovery. Judge Sorokin denied MedIdea’s request for detailed royalty reports, in light of MedIdea’s expert acknowledging that documents already produced provided sufficient information to calculate damages. He also refused to compel production, at no cost to MedIdea, of different sizes of the accused products, finding no authority to require the provision of thousands of dollars of products for free when the sole difference was the size. Judge Sorokin also denied MedIdea’s demand that DePuy produce a 30(b)(6) witness to testify on the nature of DePuy’s search for documents and choice of keywords for searching electronic records, in light of DePuy’s statement that only outside counsel participated in that task and in light of MedIdea’s delay of eight months form the time when the schedule required the parties to meet and confer on electronic discovery issues. Finally, Judge Sorokin granted DePuy’s motion to quash subpoenas to two inventors of prior art identified by Depuy and that served as the basis for institution of an IPR proceeding. Judge Sorokin noted that MedIdea had been obliged to identify any relevant witnesses in its initial disclosures more than a year prior, and had failed to seek to supplement its disclosures. Moreover, the reference was more than ten years old, and was but one of many references cited by DePuy, but was the sole reference on which the IPR was granted, creating an inference that MedIdea was seeking their depositions in the litigation to circumvent rules that would prohibit such in the IPR proceeding itself.