Patent landscapes › Home & cleaning

Is a water leak detector patented?

Short answer: specific designs of a water leak detector have been patented many times, but "a water leak detector" as a general idea is not what is protected. What matters is the exact combination of features in your version.

What our index shows
  • 1,816 US and WO patent publications since 2000 have a title matching “water leak detectsensoralarm” or a close variant (our index of 9.7 million patent families; one publication per family).
  • Among the 444 best keyword matches we examined, 185 were published in 2020 or later, and the earliest was published in 2000.
  • Most frequent assignees in those matches: INFICON GMBH (26), PFEIFFER VACUUM (14), RHEEM MFG CO (7), HONEYWELL INT INC (6).
  • Most common patent classes (CPC subclasses): G01M (351), G08B (56), G01N (49), G01F (39).

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 water leak detector

  1. Method for determining location of water leak by means of mobile leak detector, and server using same WO-2024090749-A1 2024 · FLOWORK LABORATORY INC
    The present invention relates to a method for determining the location of a water leak by means of a mobile leak detector, the method comprising the steps in which a leak detection server: transmits a candidate location of a water…
    View on Google Patents
  2. Water leak detector device and leak detection procedure US-11754461-B2 2023 · AGANOVA S L
    A device is produced as a small sphere with neutral buoyancy, within which there is, at least, one hydrophone that is connected to a signal processor, which stores the information on a memory card and that is powered by at least o…
    View on Google Patents
  3. Micro power water leak detector US-11060942-B2 2021 · ADEMCO INC
    A fluid sensing system and approach having a leak sensor. The leak sensor may output a signal when a fluid is detected. The signal may go to an alarm circuit which can sound a warning or alert. The signal may also go to a control …
    View on Google Patents
  4. Water flow and leak detector US-10281308-B2 2019 · HONEYWELL INT INC
    A fluid flow detecting system and approach incorporating a collar configured to be clamped to a fluid conveyance mechanism, a temperature probe held within temperature sensing range of the fluid conveyance mechanism with the colla…
    View on Google Patents
  5. Leak detector for use with flanged waste water drain pipe US-9482589-B2 2016 · GHODRATI MAHDI
    Provided herein is a leak detector comprising: a flat base sheet bound by an outer perimeter and an interior aperture; a wick material barrier coupled to the base between the aperture and the outer perimeter in a continuous or sub…
    View on Google Patents
  6. Water-leak detector, water-leak detection system, and water-leak detection method WO-2015063931-A1 2015 · HITACHI LTD
    This water-leak detector contains a processor and a storage device. The storage device stores the following: a measurement-history database containing history data for measurements of values that reflect flow rates in plumbing; an…
    View on Google Patents
  7. Dual mode water leak detector US-8869611-B2 2014 · AL-HARBI KHALED ALI
    A dual mode water leak detector is combined with a HIVAR air condition system or unit. The air conditioning unit or system uses chilled water for cooling or hot water or electric coils for heating and employs means for supplying h…
    View on Google Patents
  8. Multipurpose centralized water conservation, metering, sprinkler alarm and absolute leak detector US-8325050-B1 2012 · SCHLACHTER RAYMOND W
    A non-intrusive flow detector consists of an easily adjustable visible light optical sensor assembly, producing a spot of light, which attaches non-obstructively and non-invasively to a fluid flow meter. The spot of visible focuse…
    View on Google Patents
  9. Sink alert water leak detector US-2011048555-A1 2011 · MALOUF SAM
    Improvements in a sink alert water leak detector is disclosed using a collection tub is configurable in a variety of sizes or shapes to cover the area under the plumbing of a sink or other area that can have a potential water leak…
    View on Google Patents
  10. Water leak detector US-2011214490-A1 2011 · SAKITA MASAMI
    The preferred embodiment of the water leak detector of the present invention comprises a detection device and at least one water sensor. The water sensor includes a pair of elastic conductive metal tapes affixed to at least one ta…
    View on Google Patents
  11. Gas and water leak detecting system with human presence detector US-2010126610-A1 2010 · DIPRIMA PAOLO
    System security and control, also at distance through GSM module, of water supply, liquids and gas supply (of urban facilities for civil houses, cylinder, fixed gas cylinder) by opening and/or closing multiple automatic electromec…
    View on Google Patents
  12. Household plumbing leak detector utilizing water activated battery US-7760105-B2 2010 · TURNER JOHN BERT
    A water detection and alarm system to monitor household plumbing fixtures for leaks. A wick attached to a water activated battery cell connects to a charge accumulator, pulse timer, and audio transducer. The wick draws water from …
    View on Google Patents
  13. Water leak detector US-6310555-B1 2001
    A system for the detection of the presence of undesirable moisture and drops or droplets of liquid effusing from piping systems at the first stage of appearance, comprising a low-battery alert, provision for the device to remain o…
    View on Google Patents
  14. Water leak detector and antenna thereof WO-0140752-A1 2001 · MITSUI SHIPBUILDING ENG
    An antenna (60) includes a metallic antenna box (62) and an antenna element (64). The antenna element (64) is a half-wave planar dipole antenna having its width and length equal to one half of the wavelength (μ/2) of electromagne…
    View on Google Patents

What this means for your idea

Because patents cover specific combinations of features, the useful question is not “has a water leak detector 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.

Check your own version of a water leak detector

Get the 10 closest patents to your design, charted feature by feature, in 24 hours. Order the $99 report See a sample

Or get the full $99 report: top 10 references charted feature by feature, in 24 hours.

Guides that help with this

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.