Patent landscapes › humidifier
Patent landscapes › Home & cleaning
Is a humidifier patented?
Short answer: specific designs of a humidifier have been patented many times, but "a humidifier" as a general idea is not what is protected. What matters is the exact combination of features in your version.
What our index shows
- 1,994 US and WO patent publications since 2000 have a title matching “humidifier” or a close variant (our index of 9.7 million patent families; one publication per family).
- Among the 1398 best keyword matches we examined, 707 were published in 2020 or later, and the earliest was published in 2000.
- Most frequent assignees in those matches: KOLON INC (99), LG ELECTRONICS INC (54), HYUNDAI MOTOR CO LTD (30), ResMed Pty Ltd (28).
- Most common patent classes (CPC subclasses): F24F (844), H01M (309), Y02E (304), B01D (220).
Counts come from keyword matching on titles and abstracts, so they are indicative, not a legal count. Some matches are different products that share a word.
14 real patent publications related to a humidifier
- Magnetic ring assembly, water tank assembly, and humidifier US-2026266501-A1 2026 · SHENZHEN CHENBEI TECH CO LTD
A magnetic ring assembly is disposed at a bottom of a water tank; the magnetic ring assembly includes a magnetic ring connecting seat, a magnetic ring fixing seat, and a magnetic ring; the magnetic ring connecting seat is vertical…
View on Google Patents - Humidifier with a water mist spraying unit for use with a forced-air heating system US-2025290649-A1 2025 · WANG YONG QIANG
A humidifier for use with a forced-air heating system may include a housing assembly and a water mist spraying unit carried by the housing assembly. A main body of the water mist spraying unit may include a water inlet, at least o…
View on Google Patents - Water tank and humidifier US-11549700-B2 2023 · SHENZHEN CHENBEI TECH CO LTD
A water tank, comprising a bottom cover and a tank body that are assembled and that seal each other, wherein a mist discharging channel is disposed inside the tank body, a mist gathering assembly is disposed on the bottom cover, t…
View on Google Patents - Ultrasonic Humidifier US-2023058766-A1 2023 · ZHANG ZHIBING
An ultrasonic humidifier may include a water tank, an atomizer arranged in the water tank, an upper cover detachably connected with the water tank and an artificial flower, wherein the upper cover is provided with a mist outlet pi…
View on Google Patents - Ultrasonic humidifier for regulating humidity in an environment US-2021003303-A1 2021 · SHENZHEN TOKYUN TECH CO LTD
Embodiments of the disclosure provide humidifiers and methods for regulating a humidity in an environment using the humidifiers. An exemplary humidifier may include a water tank configured to store a supply of water and a chamber …
View on Google Patents - Humidifier water tank assembly, filtering device and humidifier comprising same WO-2020042477-A1 2020 · GREE ELECTRIC APPLIANCES INC ZHUHAI
A humidifier water tank assembly, a filtering device (10), and a humidifier comprising same. The humidifier water tank assembly comprises a water tank (20), the filtering device (10), and a water outlet cover (30), wherein the wat…
View on Google Patents - Humidifier with water flow control between an upper tank and a lower reservoir US-10578325-B2 2020 · MCDONNELL JOSEPH A
The humidifier has an upper tank and a lower reservoir. A liquid level switch in the lower reservoir works in conjunction with a valve in a water passage between the upper tank and the lower reservoir in order to provide an automa…
View on Google Patents - Humidifier and dedicated water mist spraying pipe thereof WO-2016201696-A1 2016 · CTK TECH (SHENZHEN) CO LTD
A water mist spraying pipe comprises a pipe body (1). The lower end of the pipe body (1) is provided with an extending separation plate (2) along the vertical direction. The inner side surface of the extending separation plate (2)…
View on Google Patents - Wind-water ultrasonic humidifier US-8113490-B2 2012 · CHEN HUI-CHIN
A wind-water ultrasonic humidifier includes a housing, a hollow connecting portion, a water circulation system, and a power control box. The water circulation system includes an electric base, a rubber cork plugged into the top of…
View on Google Patents - Ultrasonic Humidifier with a Mist Purifying Member Containing Silver Ions US-2010133162-A1 2010 · HUANG CHIH-LI
An ultrasonic humidifier includes a base that is formed with a recess, as well as a water tank and a mist spraying tube that are disposed on the base and that are in fluid communication with the recess. An ultrasonic oscillator is…
View on Google Patents - Water mister for a humidifier US-2010193976-A1 2010 · FANG KENG-U
A water mister for a humidifier has a hollow base, a control assembly, and a diaphragm connected electrically to the control assembly. The hollow base has a tank formed therein and a heat-dissipating hole formed through the tank. …
View on Google Patents - Humidifier having tray in water tank portion WO-2008018696-A1 2008 · WOONGJIN CUCHEN CO LTD
Disclosed is a humidifier including a body for changing water from a storage tank into particles and dispersing the particles indoors, the storage tank storing raw water; a water-containing portion formed on the body in a concave …
View on Google Patents - Dual inlet water tank for a humidifier US-2008093750-A1 2008 · WANG ZHIJING
A water tank for a humidifier having a water passage in each of its top end and bottom end. The tank includes an actuator which is operable to open and close both of the passages. Operating the actuator opens the top passage while…
View on Google Patents - Humidifier with removable water supply tank US-6052511-A 2000 · HONEYWELL INC
A portable humidifier including a base defining a reservoir for liquid; a humidification mechanism for drawing moisture from the reservoir and discharging the moisture into the environment; and a tank removably supported by the ba…
View on Google Patents
What this means for your idea
Because patents cover specific combinations of features, the useful question is not “has a humidifier been patented?” but “has my combination of features been described before?” Household products tend to differ in the mechanism (how something attaches, folds, dispenses or cleans) rather than the basic idea.
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First-look landscape. Not exhaustive. Not legal advice. This page lists keyword-matched publications from a limited database; it does not say whether any product is or isn't covered by a patent, whether a patent is still in force, or whether your idea is patentable. Consult a registered patent attorney or agent.