Asset tracking system and method

ChangeBridge: Patent Grants - Business Methods (G06Q)

Published March 31st, 2026

Detected March 31st, 2026

Summary

USPTO granted patent US12591841B2 to AMOSENSE CO., LTD. for an asset tracking system and method that uses relative positioning between a reference terminal and an asset terminal to correct GPS measurements. The patent contains 18 claims and was filed on May 18, 2022. The technology aims to minimize asset location measurement errors compared to GPS-only tracking.

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What changed

USPTO granted Patent No. US12591841B2 to AMOSENSE CO., LTD. (inventor: Sangyeoll Lee) for an asset tracking system that measures an asset location, establishes relative positioning between a reference terminal and the asset terminal through communication, and corrects the asset location using the relative positioning to minimize GPS measurement errors. The patent covers CPC classifications including G06Q 10/0833 (asset tracking), H04W 4/029 (location-based services), and G01S 13/0209 (positioning using time difference).

Technology companies, IoT device manufacturers, and logistics firms involved in asset tracking should review the patent claims to assess potential licensing needs or freedom-to-operate implications for wireless location tracking products. Patent grants are informational in nature and do not impose immediate compliance deadlines or penalties on third parties.

Source document (simplified)

← USPTO Patent Grants

Asset tracking system and method

Grant US12591841B2 Kind: B2 Mar 31, 2026

Assignee

AMOSENSE CO., LTD.

Inventors

Sangyeoll Lee

Abstract

According to an embodiment of the present invention: in order to track an accurate location of an asset, an asset location, which is a location of an asset terminal installed in the asset to be tracked, is measured; a relative location of the asset terminal, which is based on a reference terminal, is measured through communication between the reference terminal and the asset terminal; and the asset location is corrected using the relative location. Based on this, the present invention minimizes a measurement error of an asset location, compared to a scheme of measuring an asset location by using only GPS communication.