District Court Trial Dates Tend to Slip After PTAB Discretionary Denials
Contributed by Ropes & Gray. Originally published on Patexia; republished here as part of the LexDana archive.

Delaware Cases Slipping 4-6 Months
The practice of denying AIA trial petitions in view of competing district court trial dates has brought some negative attention to the Patent Trial & Appeal Board (PTAB) over the past few months. At the same time, patent litigation has increased over the first two quarters of the year by 20%. This surge has been greatly aided by the exploding popularity of the Western District of Texas (WDTX) with non-practicing entities — a district that the PTAB is increasingly deferring to in its discretionary denials based upon competing trial dates.
While Patent Owners are quick to point to a looming district court trial date as being set in stone, in reality, these dates are often reset once the PTAB hurdle is cleared.
While still a small data set, cases that are denied by the PTAB based upon a looming trial date have seen significant delays in some districts.
For example, in the patent suit heavy District of Delaware, 100% of the cases denied by the PTAB for an earlier trial date have been rescheduled — anywhere from 4-6 months. This is a significant delay that may militate in favor of institution given the relative speed of an 8-month PTAB trial schedule:

In the WDTX, 70% of trial dates initially relied upon by the PTAB to deny petitions have slid. While WDTX shows a lower average delay, this is likely a due to that court’s preference to push out dates on a recurring basis rather than more significant schedule remodels.

Taking all districts into account the average trial delay is 3 months of delay, with a maximum of 7 months. That said, with COVID-19 delaying trials scheduled for the last 4-5 months, delays will certainly increase further as the courts work through their growing backlog.
In the meantime, as one PTAB panel explained it, the PTAB has been firing on all cylinders.
Scott A. McKeown is an author of the Patents Post Grant
More insights
Fresh From the Bench: Latest Precedential Patent Case
Ridge Corp. et al. v. Kirk NationaLease Co. et al. , Appeal No. 2025-1254 (Fed. Cir. July 13, 2026) In its only precedential patent opinion last week, the Federal Circuit considered an appeal of a preliminary injunction issued by the U.S. District Court…
Fresh From the Bench: Latest Precedential Patent Cases
CASE OF THE WEEK Wyeth LLC v. AstraZeneca Pharmaceuticals LP , Appeal No. 2024-2325 (Fed. Cir. July 9, 2026) In our Case of the Week, the Federal Circuit affirmed a district court ruling reversing a $107.5 million jury verdict against AstraZeneca in a case…
Enanta Pharmaceuticals, Inc. v. Pfizer Inc., Appeal No. 2025-1427 (Fed. Cir. Jun. 23, 2026)
CASE OF THE WEEK Enanta Pharmaceuticals, Inc. v. Pfizer Inc., Appeal No. 2025-1427 (Fed. Cir. Jun. 23, 2026) In our Case of the Week, the Federal Circuit affirmed summary judgment invalidating all claims of Enanta’s Patent No. 11,358,953 as…