Google LLC v. EcoFactor, Inc.

Background

Google filed the case seeking a declaratory judgment that it did not infringe four patents owned or asserted by EcoFactor: U.S. Patent Nos. 10,584,890, 8,740,100, 8,751,186, and 9,194,597. The Patent Trial and Appeal Board instituted inter partes review proceedings for the latter three patents. The Board issued final written decisions in those proceedings, and Google received a unilateral covenant from EcoFactor not to sue regarding those three patents. The ’890 Patent therefore remained the only patent in dispute.

The Board previously declined to institute inter partes review of the ’890 Patent. Google later requested an ex parte reexamination, a Patent Office process for reconsidering a patent’s validity, of all claims in that patent. The Board instituted that reexamination on August 17, 2023. Google then filed a renewed motion to stay, meaning to pause, the federal case until the reexamination was finally resolved.

Legal Standard

The court explained that it has authority to manage its docket by staying proceedings pending Patent Office reexamination. It considered three factors: the stage of the case, whether the reexamination could simplify the litigation, and whether a stay would unfairly prejudice or tactically disadvantage EcoFactor. Google had the burden of showing that a stay was appropriate.

Discussion

Stage of the Proceedings

The court found that this factor favored a stay. No discovery had taken place in this case, and no trial date had been set. Although EcoFactor argued that the parties had already spent substantial resources on claim-construction briefing and a hearing, the court concluded that the circumstances had not meaningfully changed since its earlier finding that the case was at an early stage. The court did not treat discovery completed in a related Texas proceeding as relevant because discovery had not been completed in this case, the cases involved different accused products or systems, and there was no agreement allowing discovery to be used across the cases.

Simplification of the Case

The court also found that this factor strongly favored a stay. If the reexamination invalidated the ’890 Patent claims, the remaining infringement dispute would no longer need to be tried. EcoFactor argued that earlier challenges to the patent predicted that Google’s reexamination request would not succeed. The court rejected that argument, finding that only one earlier challenge substantially overlapped with Google’s request and that the overlap in prior-art references did not provide much predictive value. The court stated that the relevant question was whether the reexamination could realistically simplify the case, not whether it was likely to invalidate the patent.

Prejudice and Disadvantage

The court treated this factor as neutral. It found that Google’s delay in requesting reexamination weighed somewhat against a stay because Google had not adequately explained why it waited several months after earlier review proceedings ended. However, Google did not delay in filing the stay motion after the Patent Office instituted reexamination, and the fact that reexamination had already begun favored a stay. The relationship between the parties remained neutral, as it had in the court’s earlier stay ruling.

The court also considered EcoFactor’s concern that evidence could be lost during another stay. It found no specific reason to worry about preserving documents or other evidence. The court noted that EcoFactor had described little discovery as remaining and had not shown that important evidence was controlled by third parties.

Disposition

The court concluded that the first two factors weighed heavily in favor of a stay and that the prejudice factor was neutral. It granted Google’s motion to stay pending conclusion of the reexamination of the ’890 Patent. The parties must file a joint status report every six months about the reexamination and any appeals. They must also file a one-page joint status report within seven days after the final written decision in the reexamination, attaching that decision without argument.