OptimNet LLC sued Amazon.com Services LLC and Amazon Web Services, Inc. for patent infringement on June 18, 2026 in the U.S. District Court for the Western District of Washington. The docket carries case number 2:26-cv-02141 and is recorded as nature of suit 830 (patent), with the cause listed as patent infringement under 35 U.S.C. § 271. The RECAP docket lists the case as assigned to Judge Jamal N. Whitehead.

The complaint states the action arises from alleged infringement of four patents, which it collectively calls the Asserted Patents: U.S. Patent 8,543,864 (“Apparatus and Method of Performing Error Recovering Process”), U.S. Patent 8,788,846 (“Cloud Computing System and Cloud Server Managing Method Thereof”), U.S. Patent 9,104,565 (“Fault Tracing System and Method for Remote Maintenance”), and U.S. Patent 9,112,934 (“Apparatus and Method for Configuring On-Demand Content”). The complaint states the patents originate from the Electronics and Telecommunications Research Institute and that OptimNet is the exclusive licensee.

The Accused Instrumentalities include Amazon's Cloud Services, including Amazon Simple Storage Service (“S3”), Amazon Elastic Compute Cloud (“EC2”), Amazon Web Services, Inc.'s (“AWS”) Nitro System, Amazon CloudFront, Amazon CloudWatch, and Amazon CloudWatch Xray (with Insights).

The complaint identifies the accused instrumentalities as Amazon's cloud services, specifically naming Amazon S3, Amazon EC2, the AWS Nitro System, Amazon CloudFront, Amazon CloudWatch, and Amazon CloudWatch X-Ray (with Insights). The pleading quotes AWS marketing and documentation describing EC2 as offering “the broadest and deepest compute platform” and describes the Nitro System as the underlying platform for modern EC2 instances that offloads functions such as network, storage, and system management from the host CPU.

One note on the filed document: while the docket header reflects this Western District of Washington case (2:26-cv-02141-JNW, before Judge Whitehead), the body of the complaint on the mirror carries a caption reading “Western District of Texas” and an earlier case number (7:25-cv-00532). OptimNet previously filed a substantially similar action against Amazon in the Western District of Texas in November 2025. This article reports the asserted patents and accused instrumentalities as stated in the document text and the current docket metadata, and flags the caption discrepancy rather than resolving it.

The docket lists OptimNet LLC as plaintiff and Amazon.com Services LLC and Amazon Web Services, Inc. as defendants. The complaint demands a jury trial. The allegations are unproven; no responsive pleading from the Amazon defendants appears on the mirror as of this writing. The full docket and complaint are available through CourtListener's RECAP archive.