A Blog About Intellectual Property Litigation and the District of Delaware


Entries for tag: Plain Meaning

Stop
Markus Spiske, Unsplash

We've written before about why some parties—especially patentees—like to propose "plain and ordinary meaning" constructions for claim terms, and about the potential hazards of doing so. These include having to submit a new joint chart with proposed constructions or, more significantly, risking cancellation of the Markman hearing and a decision for the other side (as Chief Judge Connolly suggested).

But sometimes parties still decide to risk it. Last week Judge Noreika ordered the parties in two separate cases to articulate specific meanings after they proposed "plain and ordinary meaning" constructions:

ORDER re . . . Joint Claim Construction Chart - IT IS HEREBY ORDERED that: (1) The Markman hearing will be narrowed. On or before …

We mentioned earlier this week that "plain and ordinary meaning" (sometimes shortened as "plain meaning" or "ordinary meaning") is the default in claim construction. But what is it?

As the Federal Circuit has said, plain and ordinary meaning is the meaning of a phrase to a person of skill in the art:

The ordinary and customary meaning of a claim term is the meaning that the term would have to a person of ordinary skill in the art in question at the time of the invention, i.e., as of the effective filing date of the patent application. . . . The inquiry into how a person of ordinary skill in the art understands a claim term provides an …

Caution
Scott Rodgerson, Unsplash

At a claim construction hearing earlier this month, Chief Judge Connolly noted some concerns with parties who offer "plain and ordinary meaning" constructions without explaining what that meaning is:

THE COURT: And going forward, Mr. Oakes, Mr. Russell, I am tempted to say the next time I get this situation [where] one side, the plaintiff[,] says, oh, plain and ordinary meaning and offers no alternative definition and all it does is criticize the defendant['s construction], which there's some actual[ly] support for, [then] I don't hold a hearing. I'm just going with the defendant. I was really tempted to do that in this case. So get the word out.

Volterra Semiconductor LLC v. Monolithic Power Systems, Inc., C.A. No. 19-2240-CFC-SRF, at 22:22-23:7 (D. Del. Nov. 12, 2021) (transcript).

Chief Judge Connolly also pointed out a "new trend" of parties ...

The Federal Circuit's 2008 decision in O2 Micro Int'l Ltd. v. Beyond Innovation Tech. Co., 521 F.3d 1351, 1362 (Fed. Cir. 2008) comes up frequently in patent cases. Its holding is sometimes shorthanded as "you can't argue claim construction to the jury" or "the Court must construe claim limitations if they are disputed."

Judge Noreika rejected one such shorthanding of the 02 Micro rule today, pointing out that the actual O2 Micro ruling is more nuanced than parties sometimes think:

Defendant asserts that “when parties dispute a term appearing in the body of the claims, it must be construed.” (D.I. 90 at 2 (citing O2 Micro . . . )). That statement of law is incorrect. Rather, the Federal …