CPAP Humidifying Tank Patent, Murata Manufacturing, Granted
Summary
USPTO granted patent US12605522B2 to Murata Manufacturing Co., Ltd. on April 21, 2026, covering a CPAP apparatus humidifying tank design with improved flow-dividing and shielding sections. The patent application (18302850) was filed April 19, 2023, and contains 8 claims under CPC classifications A61M 16/00 through A61M 2205/123.
“A humidifying tank of a CPAP apparatus includes a first passage, a second passage, a flow-dividing section, and a shielding section.”
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GovPing monitors USPTO Patent Grants - Medical Devices (A61M) for new healthcare & life sciences regulatory changes. Every update since tracking began is archived, classified, and available as free RSS or email alerts — 39 changes logged to date.
What changed
USPTO granted patent US12605522B2 to Murata Manufacturing Co., Ltd. for a CPAP apparatus humidifying tank. The humidifying tank includes a first passage, a second passage, a flow-dividing section, and a shielding section, with an inlet and outlet positioned so that the outlet opening center is displaced relative to an imaginary axis passing through the inlet opening center. The patent contains 8 claims and was filed April 19, 2023.
For competitors in the CPAP and respiratory therapy device market, this patent establishes enforceable IP rights for Murata's specific humidifier tank configuration. Companies developing similar humidifying tank designs for CPAP or similar respiratory devices should review the claims to assess potential design-around needs or licensing considerations.
Archived snapshot
Apr 23, 2026GovPing captured this document from the original source. If the source has since changed or been removed, this is the text as it existed at that time.
CPAP apparatus
Grant US12605522B2 Kind: B2 Apr 21, 2026
Assignee
Murata Manufacturing Co., Ltd.
Inventors
Atsushi Hattori, Hsing Kenghua
Abstract
A humidifying tank of a CPAP apparatus includes a first passage, a second passage, a flow-dividing section, and a shielding section. An inlet is defined as an opening of the first passage on an inner space side, an outlet is defined as an opening of the second passage on the inner space side, and a vertical axis is defined as a specific axis that intersects a bottom wall. As seen in a direction along the vertical axis, an opening center of the outlet is located so as to be displaced relative to an imaginary axis that passes through an opening center of the inlet and that is parallel to a direction in which the inlet faces.
CPC Classifications
A61M 16/00 A61M 16/0057 A61M 16/10 A61M 16/1045 A61M 16/1075 A61M 16/108 A61M 16/1085 A61M 16/14 A61M 16/16 A61M 16/0816 A61M 16/0066 A61M 2205/123
Filing Date
2023-04-19
Application No.
18302850
Claims
8
Mentioned entities
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