Nueces Blockchain LLC v. JPMorgan Chase Bank, N.A.
| Filed | 2026-07-22 |
|---|---|
| Court | E.D. Tex. |
| Docket | 2:26-cv-00601 |
| Nature of suit | 830 Patent |
| Practice area | Patent |
| Plaintiff | Nueces Blockchain LLC |
| Defendant | JPMorgan Chase Bank, N.A. |
| Complaint | Download the complaint (PDF, free) |
What the complaint alleges
Nueces Blockchain LLC sued JPMorgan Chase Bank, N.A. in the U.S. District Court for the Eastern District of Texas (Marshall Division), alleging that JPMorgan's Kinexys blockchain platform infringes three patents related to cryptographic distributed-ledger technology. The complaint claims that JPMorgan uses the accused Kinexys platform—including its blockchain nodes and related services like Kinexys Digital Assets and Digital Payments—to practice patented methods for embedding content-based identifiers in hash-chained ledgers and managing transaction execution via tamper-evident logs. Nueces also alleges that JPMorgan induces infringement by initiating JPM Coin transactions that Coinbase executes on its Base network.
Claims asserted
- 35 U.S.C. § 271 et seq. - patent infringement of U.S. Patent No. 8,185,733 (Method and Apparatus for Automatically Publishing Content Based Identifiers)
- 35 U.S.C. § 271 et seq. - patent infringement of U.S. Patent No. 12,399,987 (Performing Authentication)
- 35 U.S.C. § 271 et seq. - patent infringement of U.S. Patent No. 12,411,949 (Performing Authentication)