A Blog About Intellectual Property Litigation and the District of Delaware


Entries for tag: ss-102

JP 1992-136787

Last year, we posted about an interesting result in a Delaware patent trial, where Judge Connolly excluded a Japanese Patent Office Utility Model Publication after the defendant failed to offer sufficient evidence of public accessibility (and actually offered some evidence of inaccessibility).

As we explained at the time, the defendant had tried to avoid IPR estoppel by arguing that it could not have found the reference in a reasonable search, but then argued that the reference was sufficiently publicly accessible to be a prior art reference. The Court rejected that argument, holding that the JPO publication was not publicly accessible and couldn't be used as prior art.

We noted this was a great opportunity for the the Federal Circuit to …

When one prior art reference incorporates another, parties often prefer to argue that they form a single reference under an anticipation analysis, rather than asserting them as an obviousness combination. After all, who wants to deal with motivation to combine and secondary considerations of non-obviousness if they don't have to?

But there is a risk. The primary reference truly has to incorporate—not just cite—the secondary reference, which not the most common situation. If the first reference merely cites the second, the court will likely find that they cannot be treated as a single reference.

Judge Andrews addressed that situation this week, when faced with a Daubert motion to strike an expert opinion that treated two references as one in its …

The reference at issue, JP 1992-136787

Japanese patent publications are typically considered to be fairly safe prior art references, as long as you prove up authenticity and offer sufficient evidence of publication.

But it turns out that that second part—showing publication—is kind of important.

In F'real Foods LLC v. Hamilton Beach Brands, Inc., C.A. No. 16-41-CFC, Judge Connolly excluded a Japanese Patent Office Utility Model Publication on a motion in limine because the defendants failed to show that it was publicly accessible under § 102, based largely on defendants' own position in opposing IPR estoppel.

Couldn't Have Found Reference = No IPR Estoppel

The F'real defendants had previously filed an unsuccessful IPR, and plaintiff moved to exclude the reference based on IPR estoppel. …