PatentBrief

A Fixture for Cleaning Showerheads with Multiple Separate Chambers

This patent describes a cleaning device for showerheads that uses a fixture with three or more separate internal compartments and channels to direct cleaning fluid to the showerhead's upper surfaces.

Granted 2026activeExpires 2041Owned by ASM IP HOLDING BVInvented by NANDWANA DINKAR, D'AMBRA ALLEN, TRAN DINH + 2 more

Original patent title: “Cleaning fixture for showerhead assemblies

What this patent covers

The actual claim

The patent describes a cleaning fixture designed to clean showerhead assemblies. This fixture has a main body that includes at least three distinct internal spaces, called cavities. Each cavity is separated from the others by a partition. Additionally, the fixture has multiple channels connected to each cavity. These channels allow cleaning fluid to flow from the cavities to the top surface of the fixture, which would then contact and clean the showerhead. For example, a user could fill the cavities with a descaling solution, attach the fixture to a showerhead, and the solution would be directed through the channels to clean mineral buildup from the showerhead's nozzles and internal components.

What this patent does NOT cover

The boundaries

  • Does not cover showerhead cleaning methods that involve simply spraying a solution onto the showerhead's exterior without a dedicated fixture.
  • Does not cover cleaning devices that use only a single, undivided chamber for the cleaning fluid.
  • Does not cover fixtures where the cleaning fluid does not flow through channels to an upper surface of the fixture body.
  • Does not cover cleaning fixtures with fewer than three distinct cavities separated by partitions.
  • Does not cover cleaning devices that rely solely on mechanical scrubbing or brushing without fluid delivery.

These exclusions are unique to PatentBrief — derived from the actual claim language, not patent-office boilerplate.

What made this novel

The clever aspect is the specific design of the fixture body with its multiple, separate cavities and associated channels. This structure allows for precise and targeted delivery of cleaning fluid to different parts of a showerhead, ensuring a more thorough cleaning than simpler, single-chamber designs or general soaking methods.

Cleaning fixture for showerhea…(Primary claim)mechanicalconsumer electronicsmaterials

Schematic visualization of the patent's claim structure. Hand-drawn diagrams in progress for each landmark patent.

Where you've seen this

Real-world examples

01

Specialized showerhead descaling kits

02

Purpose-built cleaning tools for bathroom fixtures

03

Devices used in hotels or commercial settings for fixture maintenance

04

Household cleaning accessories designed for specific plumbing components

Why it matters

The bigger picture

Showerheads often get clogged with mineral deposits like limescale, reducing water flow and spray quality. This patent aims to provide a more effective and targeted way to clean these deposits. By using multiple separate cavities and channels, the fixture can ensure that cleaning solutions reach specific areas of the showerhead that are difficult to clean with general methods, improving the lifespan and performance of the showerhead.

Filed

November 30, 2021

Granted

March 3, 2026

Market context

Who's building on this

Companies in this space

ASM IP HOLDING BV, the assignee, is primarily known for semiconductor manufacturing equipment. While this patent describes a general cleaning fixture for showerhead assemblies, specific consumer products from them in this area are not widely known. Companies in the home improvement, plumbing fixture, and cleaning product industries, such as Kohler, Moen, or specialized cleaning tool manufacturers, could potentially develop or license similar targeted cleaning solutions.

Market impact

This type of invention addresses a common household maintenance problem, potentially leading to more efficient and effective ways to clean showerheads. If widely adopted, it could create a market for specialized, structured cleaning tools that go beyond simple soaking bags or spray-on cleaners. It could also influence how plumbing fixture manufacturers design their products to be compatible with such cleaning methods, ultimately improving user experience and product longevity.

Claim 1 — Plain English

What this patent covers

The patent describes a cleaning fixture designed to clean showerhead assemblies. This fixture has a main body that includes at least three distinct internal spaces, called cavities. Each cavity is separated from the others by a partition. Additionally, the fixture has multiple channels connected to each cavity. These channels allow cleaning fluid to flow from the cavities to the top surface of the fixture, which would then contact and clean the showerhead. For example, a user could fill the cavities with a descaling solution, attach the fixture to a showerhead, and the solution would be directed through the channels to clean mineral buildup from the showerhead's nozzles and internal components.

The clever bit

The clever aspect is the specific design of the fixture body with its multiple, separate cavities and associated channels. This structure allows for precise and targeted delivery of cleaning fluid to different parts of a showerhead, ensuring a more thorough cleaning than simpler, single-chamber designs or general soaking methods.

What it does not cover

  • Does not cover showerhead cleaning methods that involve simply spraying a solution onto the showerhead's exterior without a dedicated fixture.
  • Does not cover cleaning devices that use only a single, undivided chamber for the cleaning fluid.
  • Does not cover fixtures where the cleaning fluid does not flow through channels to an upper surface of the fixture body.
  • Does not cover cleaning fixtures with fewer than three distinct cavities separated by partitions.
  • Does not cover cleaning devices that rely solely on mechanical scrubbing or brushing without fluid delivery.

Patent Journey

From filing to today

Patent Filed

2021

Patent Granted

2026 · 4yr after filing

Active Today

2026

Highly Cited

10,994 patents cite this

Expires

2041

PatentBrief Score

Impact Score

60/ 100

Strong

Citation count

40/40

Highly cited

Claim breadth

0/20

Narrow claims

Recency

20/20

Granted within 5 years

Assignee scale

0/20

Independent or smaller assignee

PatentBrief Impact Score — based on citation count, claim breadth, recency, and assignee scale. Not a legal assessment.

Claim text not yet imported for this patent.

Citations

Patent lineage

Cited by later patents

10,994

later patents that build on this invention

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Last reviewed: May 27, 2026 · PatentBrief is not a law firm and this is not legal advice.