Flow reversing apparatus battery

ChangeBridge: Patent Grants - Batteries (H01M)

Published March 31st, 2026

Detected March 31st, 2026

Summary

USPTO granted Rivian IP Holdings, LLC Patent 12590640B2 for a flow reversing apparatus designed for battery systems. The apparatus uses multiple channels that can actuate between positions to reverse fluid flow direction, enabling improved thermal management in battery applications. The patent, with 20 claims, covers technology relevant to electric vehicle battery systems.

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What changed

Rivian IP Holdings, LLC has been granted US Patent 12590640B2 for a flow reversing apparatus for battery systems. The invention includes first and second channels defining a first position for initial fluid flow direction, and third and fourth channels defining a second position for reversed fluid flow direction. The apparatus can actuate between these positions to reverse flow direction for thermal management purposes. The patent was filed on April 20, 2022, under Application No. 17724658, and contains 20 claims.

Patent holders and competitors in the battery and electric vehicle industry should review the granted claims to assess freedom-to-operate implications or potential licensing needs. The patent provides Rivian with exclusive rights to this fluid flow reversal technology for battery thermal management applications. This is a standard patent grant notice; no immediate compliance actions or regulatory deadlines apply.

Source document (simplified)

← USPTO Patent Grants

Flow reversing apparatus

Grant US12590640B2 Kind: B2 Mar 31, 2026

Assignee

Rivian IP Holdings, LLC

Inventors

Lorenzo Crosatti

Abstract

An apparatus to reverse the direction of fluid flow is provided. The apparatus can include a first channel and a second channel. The first channel and second channel can define a first position to provide a first fluid flow direction via the first channel and the second channel. The apparatus can include a third channel and a fourth channel. The third channel and the fourth channel can define a second position to provide a second fluid flow direction via the third channel and the fourth channel. The apparatus can be configured to actuate from the first position to the second position to reverse flow direction from the first fluid flow direction to the second fluid flow direction.