A Blog About Intellectual Property Litigation and the District of Delaware


Entries for tag: Sandbagging

We're really starting to run out of good, free pictures of sand bags for these posts.
We're really starting to run out of good, free pictures of sand bags for these posts. Karen Barrett, Unsplash

At this point, all of the D. Del. judges have adopted a joint claim construction brief procedure invented by Judge Andrews, where the parties serve opening, answering, reply, and surreply briefs, and then file a single combined joint claim construction brief that presents the arguments term-by-term. This means that the parties and the Court can work from a final, combined joint brief where all of the arguments match up.

This is a great procedure and everyone seems to like it. Certain questions tend to come up about it, though.

Common Questions on the Joint Claim Construction Brief

First, parties …

Sandbags
Rifugio Lagazuoi - Sandbags, vintage?, Rebecca Siegel, CC BY 2.0

As we've previously discussed, the D. Del. local rules prohibit a party from reserving arguments for a reply brief that "should have been included in a full and fair opening brief" (LR 7.1.3)—a practice commonly referred to as "sandbagging." This rule has real teeth, and failing to follow it can result in strong arguments being ignored altogether.

That's what happened on Monday in a summary judgment R&R from Magistrate Judge Burke. In addressing an invalidity motion that turned on a disputed priority date, Judge Burke found that this was "a disputed issue of fact" and recommend denial.

In addressing one of the defendant's …