Patent landscapes › dehumidifier
Patent landscapes › Home & cleaning
Is a dehumidifier patented?
Short answer: specific designs of a dehumidifier have been patented many times, but "a dehumidifier" as a general idea is not what is protected. What matters is the exact combination of features in your version.
What our index shows
- 1,555 US and WO patent publications since 2000 have a title matching “dehumidif” or a close variant (our index of 9.7 million patent families; one publication per family).
- Among the 1371 best keyword matches we examined, 582 were published in 2020 or later, and the earliest was published in 2000.
- Most frequent assignees in those matches: LG ELECTRONICS INC (81), MITSUBISHI ELECTRIC CORP (78), GD MIDEA AIR CONDITIONING EQUIPMENT CO LTD (37), THERMA STOR LLC (32).
- Most common patent classes (CPC subclasses): F24F (938), B01D (494), F25B (200), Y02B (138).
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 dehumidifier
- Water tank for dehumidifier and dehumidifier US-2026266507-A1 2026 · LG ELECTRONICS INC
Proposed are a water tank for a dehumidifier and a dehumidifier, and the water tank includes a storage part inserted detachably into a dehumidifier body of a dehumidifier and configured to store condensate discharged from a conden…
View on Google Patents - Dehumidifier without condensate tank US-12241653-B2 2025 · MIDEA GROUP CO LTD
A dehumidifier without a condensate tank is provided. The dehumidifier may include a housing, one or more outlets, and no condensate tank. The dehumidifier may be positioned directly above a floor drain and/or a drain within a uti…
View on Google Patents - Dehumidifier with condensate tank US-12135141-B2 2024 · MIDEA GROUP CO LTD
A dehumidifier system is provided. The dehumidifier system may include a condensate tank and a dehumidifier. The dehumidifier may be positionable between at least one deployed position and at least one stowed position relative to …
View on Google Patents - Dehumidifier with nesting water tank US-12104822-B2 2024 · GD MIDEA AIR CONDITIONING EQUIPMENT CO LTD
A dehumidifier includes a machine body. The machine body includes a case including an air inlet and an air outlet, a condenser provided in the case, an evaporator provided in the case, an axial flow fan vertically provided in the …
View on Google Patents - Rapid and low-cost sampling for detection of airborne sars-cov-2 in dehumidifier condensate US-2023323488-A1 2023 · UNIV MARYLAND
The present invention relates to the use of a condensate collector such as portable or stationary dehumidifier placed in a defined testing space or area and used as a readily available and affordable tool to collect airborne virus…
View on Google Patents - Dehumidifier with multi-circuited evaporator and secondary condenser coils US-11371725-B2 2022 · THERMA STOR LLC
A dehumidification system includes a compressor, a primary evaporator, a primary condenser, a secondary evaporator, and a secondary condenser. The secondary evaporator receives an inlet airflow and outputs a first airflow to the p…
View on Google Patents - Peltier effect air dehumidifier for installation in a container US-10730364-B2 2020 · SIEMENS AG
A dehumidifier unit for dehumidifying air in a container includes a Peltier element which is configured as a single-stage Peltier element and thermally connected to a cold side and to a warm side of the dehumidifier unit. The cold…
View on Google Patents - Dehumidifier having flat plate air-to-air heat exchanger US-9470441-B2 2016 · TAKUBO MACHINE WORKS CO LTD
A dehumidifier includes a suction unit, a dehumidifying unit having a chiller, a discharge unit having a heat radiator, a refrigerant circulating system, and a heat exchanger. The suction unit sucks humid air into the dehumidifyin…
View on Google Patents - Energy recovery enhanced condenser reactivated desiccant refrigerant dehumidifier US-8631661-B2 2014 · TEIGE PETER
A method and apparatus for conditioning ambient air for use in an enclosure is disclosed which cools the ambient supply air stream in sensible energy recovery device or cools and dehumidifies the ambient supply air stream in an en…
View on Google Patents - High efficiency dehumidifiers and combine dehumidifying/air-conditioning systems US-7905107-B2 2011 · DUCool
An air-conditioning system for conditioning air by removing heat and moisture from the air and transferring it to the environment, comprising: a dehumidifier ( 14 ) that produces dehumidified air and utilizes a liquid desiccant fo…
View on Google Patents - Efficiency dehumidifier drier with reversible airflow and improved control US-2007017113-A1 2007 · SCHARPF ERIC W
An apparatus and process including a heat sink exchanger ( 26 ) to cool and condense liquid out of a drying gas with a heat transfer surface arranged to exchange heat with a first sub-stream of the drying gas and a heat source hea…
View on Google Patents - Dehumidifier as effected by moisture exchange US-6931755-B1 2005
A dehumidifier includes: a housing, a fan axially mounted in the housing along a longitudinal axis of the housing, and a moisture-exchange device having a plurality of thin flat air-penetrable ducts radially disposed in the housin…
View on Google Patents - Method of dehumidifying and dehumidifier with heat exchanger having first and second passages and moisture cooling in the second passages US-6478855-B1 2002 · SEIBU GIKEN KK
A heat exchanger, perhaps a cross flow heat exchanger, has first and second passages. During dehumidification (adsorption of moisture) in the first passages, water is evaporated from the second passages. This water can be introduc…
View on Google Patents - Painting system using desiccant dehumidifier for conditioning and removing VOCS from ventilation air to be returned to spray booth US-6010562-A 2000
A painting system includes a paint spray booth ventilated by process air including a combination of outside make-up air and a portion of the exiting process air which is returned to the booth, the returned air being the main compo…
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What this means for your idea
Because patents cover specific combinations of features, the useful question is not “has a dehumidifier 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.