The Delaware Default Standard for Discovery, which has been around in its present form for about a decade now, applies to some extent in every Delaware patent case. Given how frequently discovery issues are litigated in Delaware, I was somewhat surprised to see a new ruling from Judges Connolly and Hall clarifying a bit of the Default Standard that I don't believe has ever come up before.
In addition to describing the initial exchange of contentions and the format for ESI production, the Default Standard also sets a presumptive limit on the time period for discovery:
Absent a showing of good cause, follow-up discovery shall be limited to a term of 6 years before the filing of the complaint, except that discovery related to asserted prior art or the conception and reduction to practice of the inventions claimed in any patent-in-suit shall not be so limited.
Default Standard Section 4(e)
The question that arose this month in LEO Pharma A/S et al v. Glenmark Pharmaceuticals Ltd., C.A No. 20-1359-CFC-JLH, D.I. 60 (D. Del. May 25, 2021), was what is "follow-up discovery"? ...