Yes, this is yet another Pennypack post. I can't resist. It's a tough-to-apply standard that impacts many cases (patent and otherwise). And it can sometimes seem to reward bad behavior by litigants, even—maybe especially—when applied as written.
But not this time! In Prolitec Inc. v. ScentAir Technology, LLC, C.A. No. 20-984-WCB (D. Del. Oct. 2, 2024), the patentee produced documents about a pre-priority-date sale of prior art after fact discovery closed and just five days before opening reports.
Unsurprisingly, the other side's opening expert report five days later did not include invalidity allegations about this sale.
But the …