A Blog About Intellectual Property Litigation and the District of Delaware


Entries for tag: Claim Construction

On the Importance of Claim Construction Meet and Confers

David M. Fry, June 16, 2021
Claim Construction

We've written in the past about the ongoing struggle to reduce disputed claim terms. Judge Connolly's form scheduling order requires parties to meet and confer to try to reduce disputes before the Markman hearing, and Judge Noreika frequently imposes a similar requirement after briefing is complete.

Some parties treat this process as a formality, believing that they can comply with a short, perfunctory phone call and a letter stating that the parties couldn't agree. This is a dangerous approach to claim construction meet-and-confers, and it doesn't comply with the letter (or the spirit) of the judges' orders.

Judge Connolly drove this point home in a recent oral order, issued the day before a Markman hearing:

Having reviewed the claim construction …
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Court Declines to Hold Defendant to Claim Construction Position Taken in Uninstituted IPR Petition Absent Bad Faith

Andrew E. Russell, May 21, 2021
Judicial Estoppel IPR

Yesterday, Chief Judge Stark addressed whether "judicial estoppel" prevents a defendant from taking one position in an uninstituted IPR petition and asserting a contradictory position during claim construction in the district court:

[Plaintiff] Sequoia contends that [defendant] Red Hat is judicially estopped from arguing for a narrower construction than it proposed during the IPR . . . . Judicial estoppel is only appropriate when: (1) the party to be estopped is asserting a position that is irreconcilably inconsistent with one she previously asserted; (2) the party changed her position in bad faith, i.e., with an intent to play fast and loose with the court, and (3) the use of judicial estoppel is tailored to address the affront to the …
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Judge Noreika Points Out Nuance in O2 Micro, Declines to Construe Term

Andrew E. Russell, May 17, 2021
O2 Micro Plain Meaning

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 O2 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 …
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Can You Depose Claim Construction Experts in Delaware?

David M. Fry, May 12, 2021
Claim Construction

By and large, the view from the bench is that expert testimony provides little value in the claim construction process. It's litigation-driven extrinsic evidence, and it often plays no role in the court's final analysis. But if you choose to rely on an expert during claim construction, will you have to make them available for deposition?

Judge Stark answered this question on Friday with a resounding yes. After reiterating the general view that "[e]xpert opinions and declarations constitute extrinsic evidence . . . and are at times unhelpful," he confirmed that:

a party asking the Court to rely on such extrinsic evidence should expect to make its expert(s) available for deposition prior to a claim construction hearing, should …
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Judge Noreika's Construction Limits, Revisited

Nathan R. Hoeschen, May 6, 2021
Markman Briefing 10 Terms

danist-8Gg2Ne_uTcM-unsplash.jpg
Construction site birds, 贝莉儿 DANIST, Unsplash

Late last summer, we posted about an interesting order from Judge Noreika rejecting the parties' claim construction chart for including too many terms. As Judge Noreika released a similar order just last week, I though it might be interesting to examine how firm the 10-term limit has been in the months since that first order.

The answer is "very." in the 20-some Markman orders Judge Noreika has issued since that first one, she has never once construed more than 10 terms. 4 times, she has rejected a claim construction chart for including more than 10 (14, 13, 13, and 17 terms were included in those rejected charts). In each case, she has …

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Indefiniteness Dooms Computer Bag Claims

Andrew E. Russell, May 3, 2021
Markman Briefing Indefiniteness

Judge Andrews today released a claim construction regarding several computer bag claims. Six of the claims at issue included elements regarding orientation of the opening in a computer bag:

“[pouch] opening[s] [is/are] . . . oriented in a direction substantially parallel to the planar surface”

U.S. Pat. No. 8,567,578
U.S. Pat. No. 8,567,578 U.S. Pat. No. 8,567,578

He found the claims indefinite because a POSITA would not understand the "orientation" of a bag opening, and the specification and prosecution history offered no hints:

At oral argument, [defendant] Victorinox contended that it is impossible to choose between two plausible views as to how to identify the orientation of the pouch opening; the “planar view” articulated by Victorinox and the direction pointing out of the pouch …
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Who in Delaware is Deciding Indefiniteness at Markman?

Nathan R. Hoeschen, April 29, 2021
Indefiniteness KB

Pixelated Game Over screen on an oversized PAC-MAN arcade machine
Sigmund, Unsplash

Being a notorious font of local wisdom, I am often asked whether Judge X or Y will entertain indefiniteness at Markman. Well here you have it faithful readers—everything you need to know about raising indefiniteness at Markman in Delaware

Most Delaware District Judges Will Allow Briefing and Argument on Indefiniteness at Markman

Judge Sleet rather famously did not entertain indefiniteness arguments at Markman, considering it “an attempt at an end-run around the court's scheduling order regarding the filing of dispositive motions [that] will not be sanctioned.” Pharmastem Therapeutics, Inc. v. Viacell, Inc., No. 02-148 GMS, 2003 WL 124149, at *1 n.1 (D. Del. Jan. 13, 2003). He frequently referred to this prohibition …

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Indefiniteness Is in the Eye of the Beholder

Jeff Castellano, April 20, 2021
Indefiniteness Claim Construction

In a summary judgment opinion issued on April 20, Judge Connolly found claims of two patents indefinite because they included a limitation directed to applying a composition "in an amount effective to enhance the condition of the skin." Judge Connolly reasoned that whether he applied the plain meaning of the term or the meaning ascribed to the term by the specification, "the determination of whether a person's skin is enhanced provides a paradigmatic example of indefiniteness." As he pointed out, "Beauty . . . is 'in the eyes of the beholder.'"

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Claim Construction After Trial Results in Non-Infringement

Jeff Castellano, March 30, 2021
Post-trial Motions Claim Construction

Before the Supreme Court held in Markman v. Westview Instruments that claim construction is an issue of law to be decided by the judge, and not the jury, parties would often build alternative theories of infringement and invalidity into their contentions and expert reports to take into account the different claim construction positions being argued. Because they couldn't know which position would be accepted, they were forced to plan for both, and present theories under both at trial.

Markman changed that practice. Now that claim construction is almost always decided before trial (and usually before expert reports), parties can focus on the judge's construction while building their trial presentation. However, it is worth remembering that pretrial claim construction is not set in stone, and that the judge can modify that construction based on any number of inputs, including the evidence at trial and the parties' evolving arguments.

Judge Noreika did exactly that in a ruling issued earlier this week, leading to a non-infringement finding for the defendant, and eliminating the need for a post-trial opinion on the evidence and argument submitted during trial.

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Judge Andrews: Claim Not Indefinite, Despite Possible Drafting Error

Andrew E. Russell, March 15, 2021
Indefiniteness Claim Construction

A nautilus. It's nice when significant cases have memorable names.
A nautilus. It's nice when significant cases have memorable names. Shawn Low, Unsplash

Claim construction opinions tend to be highly fact-specific, so even though they can be critically important to the parties in a case, we don't always post about them on this blog.

Judge Andrews issued an interesting claim construction opinion today, however, which addressed indefiniteness due to a potential drafting error in a claim.

The opinion involved claim language for a mechanical device:

. . . wherein the . . . assembly comprises a housing comprising the syringe and the stirring motor . . .

Defendants argued indefiniteness in light of the dual use of "comprising," because a person of skill in the art cannot determine a …

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