Litigation

Kajeet, Inc. v. Gryphon Online Safety, Inc. et al.

partially dismissed; Section 101 motion denied

1:19-cv-02370

Court: U.S. District Court for the District of Delaware
Filed: 2019-12-30

Patents at issue (2)

Plaintiffs (1)

π Kajeet, Inc.

Defendants (2)

Summary

Kajeet, Inc. sued Gryphon Online Safety, Inc. (and NortonLifeLock Inc. per one source). The court denied a Section 101 motion as to US 8,667,559 and US 7,899,438 but granted a motion to dismiss direct/indirect infringement with leave to amend.

Case overview & background

Plain-language overview of the case: parties, accused product, patents at issue, and why the suit matters.

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Key legal developments & outcome

Major rulings, motions, claim construction, settlements, and the present posture or final disposition.

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Plaintiff representatives

Counsel of record for the plaintiff(s): attorneys, firms, and roles (lead counsel, of counsel, local counsel).

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Defendant representatives

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Record id: 8667559-1-19-cv-02370 · edit in Admin

Further reading

Cost of Inter Partes Review (IPR): a 2026 breakdown
An IPR ends most cases when the prior art is real. The all-in cost is roughly a tenth of full litigation — but only if you stage it right.
Examples of NPE shell companies: how patent trolls structure their entities
The shell company is the patent troll's signature legal artifact. Knowing the structures lets you read the litigation strategy off the corporate filing.
What is a patent troll?
Patent trolls are companies whose business is suing other companies. They make nothing, sell nothing, and add nothing — they collect old patents and use them to extract settlements from companies that actually do things.
Obviousness under § 103
Most patented inventions are combinations of existing ideas. The modern KSR standard makes those combinations easier to attack than they used to be.
Most-litigated US patents: 12 patents that defined the patent troll era
If a demand letter lands on your desk citing one of these, you are not the first. The campaign playbook is on file. The defenses other defendants used are public record.

All resources →