Fuel Cell Humidifier Patent Grant

ChangeBridge: Patent Grants - Batteries (H01M)

Published March 31st, 2026

Detected March 31st, 2026

Summary

The USPTO granted patent US12592402B2 to Kolon Industries for a fuel cell humidifier designed to prevent gas leaks during repeated operations and shutdown cycles. The patent covers both the humidifier structure and its manufacturing method, featuring a humidification module with hollow fiber membranes, fixation layers, and packing members for improved sealing. The invention aims to reduce manufacturing costs while maintaining high productivity.

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What changed

The USPTO granted patent US12592402B2 to Kolon Industries, Inc. on March 31, 2026, for a fuel cell humidifier and manufacturing method. The humidification module comprises a mid-case with an inner step, hollow fiber membranes, a fixation layer where membranes are potted, a bracket supported by the step, and a packing member with grooves for the mid-case ends. The design addresses gas leakage issues during fuel cell cycling.

This is a patent grant notice that does not impose regulatory obligations on third parties. Companies developing or manufacturing fuel cell systems, hydrogen equipment, or clean energy technology may wish to review this patent to understand Kolon Industries' intellectual property claims and avoid potential infringement when designing humidification systems for fuel cell applications.

Source document (simplified)

← USPTO Patent Grants

Humidifier for fuel cell and method for manufacturing same

Grant US12592402B2 Kind: B2 Mar 31, 2026

Assignee

KOLON INDUSTRIES, INC.

Inventors

Do Woo Kim, In Ho Kim, Kyoung Ju Kim

Abstract

Disclosed are: a humidifier for a fuel cell, which can reliably prevent gas leaks due to repeated operations and shutdowns of a fuel cell and can be manufactured with relatively low manufacturing costs and high productivity as well; and a method for manufacturing same. A humidifier for a fuel cell of the present invention comprises a humidification module and caps coupled to both ends of the humidification module, respectively. The humidification module comprises: a mid-case having a step on the inner peripheral surface thereof; a plurality of hollow fiber membranes in the mid-case; a fixation layer on which ends of the hollow fiber membranes are potted; a bracket which is supported by the step of the mid-case and is in contact with the fixation layer; and a packing member in contact with the bracket and having a groove into which an end of the mid-case is inserted.

CPC Classifications

H01M 8/028 H01M 8/0284 H01M 8/0286 H01M 8/04119 H01M 8/04126 H01M 8/04141 H01M 8/04149 H01M 8/0271 H01M 8/0273 H01M 8/0276 H01M 2008/1095 H01M 8/04082 H01M 8/04097 H01M 8/04291 H01M 8/04492 H01M 8/04014 H01M 8/04828 H01M 8/04425 H01M 2250/20 B01D 63/022 B01D 63/069 B01D 2313/04 B01D 2313/025 B01D 63/0223 B01D 63/023 B01D 63/021 B01D 63/024 B01D 2313/041 B01D 2313/21 B01D 2313/20 B01D 2313/44 B01D 2313/22 B01D 2313/14 B01D 2313/201 B01D 2313/23 B01D 63/02-043 B01D 2313/205 B01D 63/0233 B01D 63/0224 B01D 63/0231 B01D 63/031 B01D 63/033 B01D 2313/08 B01D 2313/2031 B01D 2313/203 B01D 2313/208 B01D 2313/06 B01D 2315/22 B01D 2323/62 Y02E 60/10 Y02E 60/50 Y02T 10/70 Y02P 70/50