A Blog About Intellectual Property Litigation and the District of Delaware


Entries for tag: Infringement Contentions

Court Strikes Key Infringement Argument Where Party Had No Good Explanation for Late Disclosure

Andrew E. Russell, April 24, 2023
Infringement Contentions Pennypack

"Did I remember to disclose my infringement counter-arguments? Ah well, I'll just argue that they're responsive." Tim Bogdanov, Unsplash

Judge Williams unsealed a detailed Pennypack decision Friday, where he struck an expert's infringement argument after the party failed to disclose it in their contentions.

The motion and brief provide some helpful context here. The defendant moved to strike material in the expert's opening report that apparently responded for the first time to arguments made in the defendant's non-infringement contentions. Cirba Inc. v. VMWare, Inc., C.A. No. 19-742-GBW, D.I. 1460 at 1 (D. Del. Nov. 28, 2022); Id., D.I. 1461 at 2-3.

The Court rejected an attempt to argue that the argument was "responsive" to a filing …

View

Disagreement With the Substance of Infringement Contentions Does Not Mean Those Contentions Are Inadequte—And Can't Be the Basis to Withhold Discovery

Andrew E. Russell, Oct. 31, 2022
Motion to Strike MTC

"I'm a motion to strike, not a stealth motion for summary judgment" Braydon Anderson, Unsplash

One of the more common District of Delaware questions you get as local counsel is "can we move to strike opposing counsel's (infringement or invalidity) contentions?"

That may seem like a simple question, but the answer depends many things, like: What is wrong with those contentions? How were our contentions in comparison? Which judge is this in front of? How long ago did they serve them? (And, sometimes, things like: Why are you asking this now, when we are two weeks from trial?)

Challenging contention disclosures can be tough even if you have what seem like fairly good arguments. The Court is generally not …

View

Non-Infringement Is No Reason to Withhold Core Technical Documents, At Least When the Infringement Allegation is Not Baseless

Andrew E. Russell, Sept. 7, 2022
Infringement Contentions Core Technical Documents

Television
Ajeet Mestry, Unsplash

Last week Magistrate Judge Burke ruled on a core technical documents dispute in The Nielsen Company (US), LLC v. TVision Insights, Inc., C.A. No. 21-1592 (D. Del.). The defendants sought to avoid production of core technical documents for a product that was accused but that could not infringe. Judge Burke rejected that position:

Defendant shall produce core technical documents for the Logitech-based system. . . . [I]f the Court did not allow discovery of properly-accused products every time a defendant said that its product did not infringe the patent-in-suit, there would be little to no discovery permitted in the patent cases in this Court.

He suggested that the infringement allegation here was not completely baseless, and that whether the product meets the claims depends on claim construction:

The real dispute here appears to be about whether a product can infringe the relevant patent if it contains a two-dimensional and three-dimensional sensor that are implemented in one piece of hardware. . . . It strikes the Court that that issue may get resolved via claim construction, or, if not, then pursuant to a later dispute (perhaps at summary judgment) regarding infringement. But those steps in the case are still to come.

He also rejected the ...

View

The Scope of "Substantially Similar" Product Accusations

Emily DiBenedetto, Dec. 14, 2021
Accused Products Contentions

Shades of Coffee

Delaware’s Default Standard for Discovery requires that plaintiff “specifically identify the accused products and the asserted patent(s) they allegedly infringe” within 30 days of the Rule 16 Scheduling Conference. So, if the accused products were not identified in the complaint itself, they must be identified early in discovery. But what is the scope of discovery on products that were not specifically identified in the complaint or accused before the Default Standard deadline?

Can plaintiffs seek information regarding “substantially similar” models? Generally, this question is answered on a case-by-case basis using three factors found in in Invensas Corp. v. Renesas Elecs. Corp., 287 F.R.D. 273, 282 (D. Del. 2012):

(1) [A]s to relevance, the specificity with which the plaintiff has articulated how the unaccused products are relevant to its existing claims of infringement (and how they are thus “reasonably similar” to the accused products at issue in those claims);
(2) [W]hether the plaintiff had the ability to identify such products via publicly available information prior to the request; and
(3) [T]he nature of the burden on defendant(s) to produce the type of discovery sought.

In an order last week, Judge Fallon denied ...

View

Judge Burke Denies Discovery on Non-Accused Products

Jeff Castellano, Aug. 20, 2021
Infringement Contentions Motion to Compel

Patentees in federal court litigation are generally not required to identify every accused product in their complaint. Often, the complaint and early contentions identify an exemplary product or two, and the larger list of related accused products is hashed out during discovery. Simply identifying an exemplary product, however, does not entitle the patentee to demand that the defendant do all the work of identifying - and producing technical discovery on - similar products.

Judges in this District have historically limited patentees' ability to obtain discovery into unaccused products without articulating some basis for believing that those unaccused products infringe, or at least share some relevant characteristic with the products alleged to infringe in the complaint and/or contentions. Judge Burke regularly wades into these waters, applying a multi-factor test that acknowledges the relevant burdens but also leaves room for practical adjustments to those burdens where necessary.

That test was applied recently by Judge Burke in Fundamental Innovation Systems International LLC v. TCT Mobile (US) Inc., C.A. No. 20-552, and his analysis demonstrates...

View

Judge Connolly Offers an Insight on Sufficiency of Contentions

Andrew E. Russell, May 3, 2021
Infringement Contentions Contentions

As we've mentioned, Judge Connolly uses a different system of patent contentions than the other District of Delaware judges. The other judges generally use the system set forth in the Default Standard, while Judge Connolly's approach is modeled after the more restrictive method used in the Northern District of California.

Because he uses a unique system, parties often wonder just how much (or how little) is needed to offer sufficient contentions in Judge Connolly's view.

Judge Connolly offered some insight on that point today, when he overruled a patentee's objections to an accused infringer's invalidity contentions. Here is one of the contentions at issue:

Claims 1, 2, and 4 of the ’489 patent are invalid under 35 U.S.C. § …
View

Claim Narrowing in Patent Cases: Some Data on Limits on Asserted Claims and Prior Art References

Andrew E. Russell, Feb. 15, 2021
Contentions KB

Case narrowing is an issue that comes up in most patent cases at some point, whether in the scheduling order, as a discovery dispute, or at the pretrial conference (or, possibly, all three).

Average amount of prior art references each defendant seeks to assert.
Average amount of prior art references each defendant seeks to assert. Cristina Gottardi, Unsplash

When requested, judges in Delaware typically implement an initial two-stage reduction in asserted claims and prior art references, with the first stage occurring before claim construction, and the second afterward.

Of course, sometimes they will implement other schedules depending on the needs of the case and the requests of the parties. And, for cases that reach a pretrial conference, the Court often imposes an additional limit on the number of claims for …

View

Chief Judge Stark Suggests Requirement for Copyright Infringement Contentions, Similar to Patent Infringement Contentions

Andrew E. Russell, Feb. 12, 2021
Infringement Contentions Copyright

Books
Alfons Morales, Unsplash

In May 2020, West Publishing and Thomson Reuters filed a copyright action against ROSS Intelligence LLC, alleging that ROSS (through a third party) scraped content from WestLaw to start its own Artificial-Intelligence-based legal research platform. (ROSS has since ceased operations but persists solely to litigate this case.)

Down the line, I imagine the case may raise some interesting questions about AI and copyright. For example, what are the copyright implications of ROSS's use of Westlaw's copyrighted compilation of otherwise public domain materials to train an AI? Isn't that fair use (talk about transformative!)? If not, what are the damages? And so on.

For now, ROSS has moved to dismiss on the ground that West failed to …

View

Archive