In XPRT Ventures, LLC v. eBay, Inc., et al., C.A. No. 10-595-SLR (D. Del. Nov. 30, 2011), Special Master White granted defendants’ motion to compel plaintiff to provide a complete response to its interrogatory seeking plaintiff’s contentions on conception and reduction to practice for each claim of the patents-in-suit. Plaintiff opposed defendants’ motion arguing that its response was complete, that the interrogatory posed an undue burden, was duplicative of other discovery and imposed an unnecessary expense. Id. at 8. Special Master White disagreed. He found that the response was incomplete because it failed to provide any information concerning due diligence and failed to identify any documents, although requested by the interrogatory. Special Master White noted that plaintiff “may not pick-and-choose which portions of the discovery request that it likes, and then claim that the response is complete.” Id. Special Master White also found that the interrogatory did not pose an undue burden, was not duplicative and did not impose an unnecessary expense. Id. at 9-11. There was no undue burden because it is the plaintiff not the defendant that controls the number of claims asserted in the case. Id at 9. The interrogatory was not duplicative because choosing to serve “written discovery in advance of a deposition is hardly novel; nor is it objectionable for a party to want to know basic facts and receive relevant information and documents before taking a deposition; and it is inappropriate for the responding party to instruct the propounding party to ask the question at a deposition rather than provide a written response.” Id at 10. Last, the interrogatory posed no unnecessary expense because the information sought should be readily available to plaintiff. Id. at 11.