Before you get too excited, defendants, this case involved a scheduling order using Judge Connolly's form, which provides only a single round of infringement and invalidity contentions, and explicitly requires good cause to amend.
Most District of Delaware scheduling orders include two rounds of contentions (initial and final), with the second round typically coming around the close of fact discovery. It is unlikely to be as difficult to amend in cases like those.
Regardless, I thought this was an interesting result worthy of a post. In Cognipower LLC v. Fantasia Trading, LLC, C.A. No. 19-2293-JLH-SRF (D. Del.), the Court stayed the case …
Behold, our claim chart. Look upon it and despair!AI-Generated, displayed with permission
Parties in patent cases often fight about the sufficiency of infringement and invalidity contentions. Parties may offer broad initial contentions, keeping their options open as the case develops and avoiding the cost of detailed contentions. The opposing party, though, may want detailed contentions to narrow and explain the case and to tie parties to their positions.
Often, one side or the other moves to compel more detailed contentions knowing that, if they lose and if the opposing party refuses to supplement, they will be better positioned to exclude the more detailed contentions inevitably offered later.
The defendant in Almondnet, Inc. v. Viant Technology LLC, C.A. No. …
The District of Delaware's Default Standard for Discovery requires contentions in patent cases.
One common Delaware counsel question is: what level of detail is required for contentions?
The answer varies on what the concern is. There is a certain level of detail that will probably preclude the Court from ordering you to supplement your contentions—but providing just that bare level of detail may not be enough to preserve all arguments that you later want to make.
On Monday, Judge Burke denied a motion to strike invalidity contentions where a party had disclosed an obviousness theory as to a patent based on modification of a prior art reference, but had not disclosed their intent to cite and rely on their own product as evidence that the modification was obvious.
The plaintiff had moved to strike the discussion of the defendants' own product from their expert reports, on the theory that their contentions failed to to disclose their intent to use that product in their obviousness analysis. Judge Burke denied the motion, and explained that a party need not disclose all evidence in support of its contentions:
Although this is a difficult issue, the Court is not prepared to say that Defendants' actions amounted to an untimely disclosure. This is because Defendants have affirmatively represented that they are not relying on the direct aortic Engager system as prior art itself; instead, they rely on it only as a piece of evidence that will be used to "show that a direct aortic version would have been an obvious modification to Engager 3.0 at the relevant time." (D.I. 361 at 2) In other words, Defendants are relying on the system simply as evidence in support of a theory that was itself timely disclosed. And as Defendants note, courts generally hold that: (a) in validity-related or infringement-related contentions, a party is not required to cite to every piece of evidence that will be used to support a given theory; and (b) it is proper for an expert to expand upon such theories in his expert report. . . . The Court also notes that it is not as if Plaintiff had zero prior knowledge of the existence of the [Defendants'] system. As Defendants point out, they produced documents in discovery regarding this system, and their engineers testified at some length about the device during depositions. . . . (4) In light of the above, the Court cannot say that Defendants' conduct amounts to untimely disclosure that should be stricken.
Speyside Medical, LLC v. Medtronic CoreValve LLC, C.A. No. 20-361, D.I. 447 (D. Del. Dec. 18, 2023).
In my view, the Court is not saying that no evidence at all needs to be disclosed in support of the contentions—just that this particular evidence went beyond what was necessary, under the facts of the case.
"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 …
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 …
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.
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.
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...
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. § …
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).
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 …
This blog is for general informational purposes. It is not an offer to perform legal services, and should not be considered a substitute for legal advice. Nothing in this blog should be construed as forming an attorney-client relationship. If you have legal questions, please consult counsel in your jurisdiction.
