Judge Williams dealt with an interesting indefiniteness argument this week, which doesn't appear to have been previously addressed by the Federal Circuit or a Delaware Court.
The issue arose in construing the term "real-time"—which is the sort of term that frequently sees an indefiniteness challenge. The defendant in B.E. Tech., L.L.C. v. Twitter, Inc., C.A. No. 20-621-GBW (D. Del. Feb 13, 2024) (Mem. Op) made all the usual arguments that the scope of the term was unclear—did it include something happening minutes later, hours, years!?—which Judge Williams rejected citing numerous cases successfully construing "real-time."
The defendant also raised the novel (to Delaware) argument that the term, which appeared only in a dependent claim, was indefinite because it was not clear what it added to the independent claim.
The independent claim was your classic software gobbledy-gook complete with "one or more servers" and selections "based at least on information." I won't bore you with it, but the thrust was that you use cookies to send targeted ads.
The gist of the defendant's argument was that this independent claim necessarily involved "real-time" ad-service. So, a person seeing a dependent claim that added "real-time" would be confused, hence, indefiniteness.
Judge Williams disagreed, finding the claim term not indefinite:
Defendants provide no authority supporting the proposition that a Court should find a dependent claim indefinite when it claims overlapping subject matter with either an independent claim or another dependent claim. Indeed, the Court has found no authority supporting this proposition, and voluminous authority rebutting it. The Court follows this line of authority: that two claims may have the same meaning does not inherently render them indefinite. Thus, Defendants' primary argument fails as a matter of law.
Id. at 5-6 (internal citations omitted).
Although unsuccessful here, it's a neat argument that I was surprised I hadn't seen before. We'll keep you in the loop if it comes up again.
TTFN
