A Blog About Intellectual Property Litigation and the District of Delaware


Entries for date: August 2020

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Poker Night, Michał Parzuchowski, Unsplash

On Monday, Judge Connolly issued a Memorandum Order squarely rejecting the notion that requiring a patentee to drop asserted claims for case management purposes violates due process.

Claim narrowing is one of those issues in patent law that is frequently litigated, but rarely produces a full opinion. Often, a plaintiff asserts a monstrously large number of claims, the defendant then complains that a trial on 396 claims is impossible, and the plaintiff notes that requiring them to drop the claims implicates due process. Then, everything is teed up for a discovery dispute resulting in a brief oral order narrowing the case without significant analysis.

The dispute in VLSI Technology LLC v. Intel Corporation …

Stealth
Jaroslav Devia, Unsplash

Speaking of MILs, Chief Judge Stark recently denied two motions that were, "in reality, motions for summary judgment" masquerading as MILs. Xcoal Energy & Res. v. Bluestone Energy Sales Corp., C.A. No. 18-819-LPS (D. Del. Aug. 3, 2020).

The motions were framed as MILS to exclude evidence on the defendants' "fraud-based claims and defenses" and their claim for lost profits. But they actually sought "judgment on particular claims and defenses[,]" and they didn't even mention the Federal Rules of Evidence.

The judge denied the motions outright, explaining that:

“[M]otions in limine should not be used as disguised motions for summary judgment.” Brown v. Oakland County, 2015 WL 5317194 at *2 (E.D. …

Water Heater, U.S. Pat. No. 8,375,897

Chief Judge Stark today issued a memorandum order addressing MILs and setting procedures for an August 14 remote bench trial in a single-patent competitor case about gas water heaters.

These kinds of pre-trial opinions are often interesting because they are issued so close to trial and can have such a big effect. Interesting points:

  • He denied all 5 MILs. These include MILs to preclude or exclude:
    • Testing data and other evidence as inconsistent with claim construction
    • Evidence or argument regarding a new construction of an unconstrued term, although he will construe it later if needed (citing O2 Micro)
    • Evidence of a non-infringing alternative; the fact that the NAI was never marketed was not dispositive
    • Expert testimony …

In an appeal from a Judge Battalion case in the District of Delaware, the Federal Circuit today held that—unsurprisingly—a jury may answer the fact question of whether a patent is standards essential.

It held that the argument to the contrary, that the Court must determine whether a patent is standards-essential during claim construction, was based on a misreading of precedent.

When mounting a Section 101 challenge, it is tempting to reduce the claimed invention to the broadest abstract concept possible (for example, "communications" or "data transfer"). The Federal Circuit has not given defendants much incentive to be more selective or specific in that regard. However, there are limits, and the defendants in APS Techs. v. Vertex Downhole, Inc., C.A. No. 19-1166-MN found them.

Oil Rig
Oil Rig Worksite Ltd, Unsplash

In a July 29, 2020 order Judge Noreika denied defendants' motion to dismiss because defendants' Section 101 challenge "oversimplified the claim to an improper level of abstraction." Defendants asserted that the claims were directed - at their heart - to "data transmission." Although Judge Noreika expressed some …

Buckets
Carolyn V, Unsplash

The Federal Circuit today reissued its March 2020 opinion in Illumina, Inc. v. Ariosa Diagnostics, Inc., which held a "method of preparation" claim relating to a natural phenomenon was patent eligible.

The reissue follows a petition for rehearing.

The patents involve a method for preparing a fetal DNA sample using a blood sample from a pregnant mother, by sorting the DNA fragments and removing the smaller ones using a size threshold.

The Original Bucket-Based Analysis

The Court originally described how it has consistently rejected "natural phenomenon"-related claims that fall into a "diagnostic" bucket, but has permitted method of treatment claims:

This is not a diagnostic case. And it is not a method of …