USPTO Patent Grant: Bank-Driven Digital Currency Double-Spending Prevention

ChangeBridge: Patent Grants - Business Methods (G06Q)

Published March 24th, 2026

Detected March 25th, 2026

Summary

The USPTO has granted a patent to Wells Fargo Bank N.A. for a bank-driven model designed to prevent the double-spending of digital currency across multiple distributed ledger technology (DLT) networks. The patent describes a system that monitors digital wallets and locks digital currency to prevent transfers when a subsequent transaction request is detected.

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What changed

The United States Patent and Trademark Office (USPTO) has issued patent US12586061B2 to Wells Fargo Bank N.A. for a novel system and method to prevent the double-spending of digital currency. This innovation specifically addresses the challenge of managing digital currencies that exist on multiple distributed ledger technology (DLT) networks simultaneously. The patented technology involves a monitoring agent on a digital wallet node that intercepts calls, messages, or events, and subsequently locks the digital currency on its DLT network to prevent unauthorized transfers when a subsequent transaction request is made.

This patent grant signifies a technological advancement in the security and integrity of digital currency transactions, particularly for financial institutions operating with multi-network DLT solutions. While this is a patent grant and not a regulatory rule, it indicates a direction of innovation that could influence future industry standards and practices. Compliance officers in the banking and financial technology sectors should be aware of such patented technologies as they may represent future operational requirements or competitive advantages in the digital currency space. No immediate compliance actions are required, but it highlights the evolving landscape of digital asset management and security.

Source document (simplified)

← USPTO Patent Grants

Bank-driven model for preventing double spending of digital currency coexisting on multiple DLT networks

Grant US12586061B2 Kind: B2 Mar 24, 2026

Assignee

Wells Fargo Bank N.A.

Inventors

Abhijit Shetti, Laura Marie Fontana, Rameshchandra B. Ketharaju, Andrew J. Garner, IV, Nikolai Stroke, Duc Trinh, Mabel Oza, Todd Biggs

Abstract

A system and method for preventing the double-spending of digital currency that transfers between multiple DLT networks. The system and method includes creating a first digital currency of a first type on the first DLT network stored in a digital wallet, the first digital currency associated with a second digital currency of a second type on a second DLT network, configuring a monitoring agent on the node, the monitoring agent configured to intercept at least one of a function call, a message, or an event on the digital wallet, and locking, responsive to intercepting the at least one of the function call, the message, or the event, the first digital currency onto the first DLT network to prevent a transfer of the first digital currency from the digital wallet on the first DLT network to another DLT network responsive to a subsequent transaction request.