USPTO Patent Grant: Humidifier Heater Base

ChangeBridge: Patent Grants - Medical Devices (A61M)

Published March 24th, 2026

Detected March 25th, 2026

Summary

The USPTO has granted patent US12582794B2 for a humidifier heater base assembly to Fisher & Paykel Healthcare Limited. The patent covers a specific design for a heater plate with a resilient perimeter flange intended to improve assembly and functionality in humidification devices.

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What changed

The United States Patent and Trademark Office (USPTO) has granted patent US12582794B2 for a humidifier heater base assembly. The patent, assigned to Fisher & Paykel Healthcare Limited, details an assembly featuring a heater plate with a thermally conductive portion and a perimeter portion. A key innovation is a resilient member with a perimeter flange that secures the heater base to the humidifier, allowing for controlled movement of the heater plate relative to the humidifier.

This patent grant signifies the protection of intellectual property for a specific medical device component. While not a regulatory rule imposing obligations on other entities, it establishes exclusive rights for the assignee. Companies operating in the medical device manufacturing sector, particularly those involved in respiratory or humidification technologies, should be aware of this granted patent to avoid potential infringement and to inform their own product development and intellectual property strategies.

Source document (simplified)

← USPTO Patent Grants

Humidifier heater base

Grant US12582794B2 Kind: B2 Mar 24, 2026

Assignee

Fisher & Paykel Healthcare Limited

Inventors

Venkata Subbarao Potharaju, Yi-Cheng Sun, Dominique Richard D'Andrea, Andrew Paul Maxwell Salmon

Abstract

A humidifier heater base assembly has a heater plate with a thermally conductive portion and a perimeter portion around a perimeter of the heater plate. A resilient member has an inner part attached to the perimeter portion and an outer part adapted to provide a resilient perimeter flange around at least part and preferably the whole of the perimeter portion. The resilient member fixes the heater base to the humidifier by the resilient perimeter flange such that the heater plate and the inner part can move relative to the humidifier in a direction substantially transverse to the general plane of the heater plate. At least a portion of the resilient perimeter flange remains stationary relative to the humidifier.

CPC Classifications

A61M 16/0066 A61M 16/024 A61M 16/08 A61M 16/1045 A61M 16/1075 A61M 16/109 A61M 16/1095 A61M 16/16 A61M 16/161 A61M 16/162 A61M 16/167 A61M 2205/3653 A61M 2207/10 A61M 2209/082 F24F 6/10 H05B 3/68 Y10S 261/65 Y10T 29/49085