Finjan, LLC v. Qualys Inc.

Background

Finjan, Inc. brought a patent-infringement action against Qualys Inc., alleging direct and indirect infringement of patents identified in the complaint. Qualys had already filed an answer and an amended answer.

Qualys sought permission under Federal Rule of Civil Procedure 15(a)(2) to amend its answer to add three affirmative defenses—legal defenses asserted in response to the complaint: patent exhaustion, implied license, and preclusion. All three proposed defenses concerned the ’305 Patent.

The proposed exhaustion and implied-license defenses relied on a license agreement between Finjan and Trend Micro Inc. that Finjan produced during the case. Qualys argued that, as a Trend Micro customer, it benefited from an authorized sale that exhausted Finjan’s patent rights and from an implied license. The proposed preclusion defense relied on patent reexamination proceedings in which the Patent and Trademark Office cancelled certain claims of the ’305 Patent as unpatentable. Qualys argued that the asserted claims were not materially different from the cancelled claims.

Finjan argued that the amendments would be futile, meaning legally incapable of succeeding, and also argued that Qualys had delayed unreasonably and that the amendments would prejudice Finjan.

Court’s analysis

The court explained that leave to amend pleadings should generally be granted unless factors such as bad faith, undue delay, prejudice, or futility provide a strong reason to deny it.

For patent exhaustion, the court found Qualys’s interpretation of the Trend Micro license plausible. The court did not resolve the parties’ contract-interpretation dispute, including whether the license restricted sales to Qualys. It held that the dispute did not make the proposed defense futile at the amendment stage.

For implied license, the court found that Finjan’s covenant not to sue Trend Micro and certain related entities raised a possible defense. The court noted that it was not clear how Qualys claimed to fall within the relevant category, but concluded that this uncertainty did not justify denying amendment.

For preclusion, the court considered the similarity between cancelled and asserted patent claims and the Patent and Trademark Office’s findings. The court concluded that Finjan had not shown strong evidence that the proposed defense was futile. The court also noted that the earlier inter partes review did not establish that the asserted claims were invalid and that Qualys was not named as a party-in-interest in those proceedings.

The court rejected Finjan’s undue-delay argument because the precise contents of the Trend Micro license were apparently not known to Qualys until the license was produced, and Qualys filed its motion within two months after the reexamination certificate issued. The court also found insufficient prejudice because fact discovery had not ended and Finjan did not identify how its infringement contentions would change.

Disposition

Judge Yvonne Gonzalez Rogers granted Qualys’s motion for leave to amend its answer and affirmative defenses. The court also granted the parties’ motions to seal information related to confidential license agreements under the good-cause standard applicable to the non-dispositive motions. The order terminated Docket Numbers 43, 44, 51, and 54. It did not decide whether Qualys actually established any of the proposed defenses or whether patent infringement occurred.