Micro Speaker & Receiver Patents: Leaders, Trends & White Space 2026
- Four assignees account for all 24 records in scope. there is no long tail here — the field is fully covered by a small ranked group, with one leader well ahead of the rest.
- Filings peaked in 2022 at 11 records and fell to 2 by 2024, a -71% drop over that three-year span; 2025-2026 figures are still filling in due to publication lag.
- 91.7% of the 24 records sit in H04R loudspeakers and audio transducers, confirming this is a tightly bounded transducer-design corpus rather than a broad acoustics field.
Filing growth compares 2021 (7 records) with 2024 (2) — a three-year span. 2024 is the most recent year we treat as complete: publication lags filing by roughly 18 months, so 2025 onwards are still filling in and any growth rate that ends there would understate the field.
What this landscape covers
This review covers patent records matching micro speaker design and balanced armature receiver claims, filtered to filings that address diaphragm suspension, magnet circuit, frequency response, rub and buzz, waterproof mesh, or assembly tolerance in the claim description. The scope runs from 2015 through the 2026-07-31 data cut-off, and every record in the set also carries a patent family, making family counts and document counts identical here.
The result is a narrow, well-defined corpus: 24 records total, concentrated almost entirely in loudspeaker and transducer classification, with filing activity that rose through the early 2020s and has since receded from its peak.
Filing trend and technology composition
Two views of the same 24-record corpus: how filing activity moved year over year, and which IPC subclass carries the claim volume.
Filing trend: rise to a 2022 peak, then a sharp pullback
Filings were absent in 2017, built through the early 2020s, peaked at 11 records in 2022, then dropped to 2 by 2024 — a decline of 71% over that three-year window. Because publication trails filing by roughly 18 months, the 2025 and 2026 figures are not yet representative and should not be read as a continuation of the decline.
IPC composition: concentrated in H04R
H04R (loudspeakers and audio transducers) covers 22 of the 24 records in scope, or 91.7%. That single-class dominance confirms this dataset is a purpose-built transducer-design corpus, not a general acoustics or audio-processing set — claim activity outside diaphragm, armature and magnet-circuit design is essentially absent here.
Shares are the percentage of the 24 records in scope. A patent can carry several IPC classes, so the shares add up to more than 100%.
Go deeper on Micro Speaker and Receiver Acoustic Design with Eureka
This page is one run against one query. Ask Eureka your own question about micro speaker and receiver acoustic design and every answer comes back with the patent numbers behind it.
Try EurekaRepresentative and most-cited filings
Balanced armature receiver having improved frequency response
A diaphragm for a balanced armature receiver and combinations thereof. The diaphragm includes a paddle having an area of concentrated mass located at or near a central portion of the paddle, the area of concentrated mass having an area density greater than an area density of other portions of the paddle, wherein the area of concentrated mass shifts a bending-mode frequency of the paddle to a lower frequency compared to a bending-mode frequency of the paddle in the absence of the area of concentrated mass.Filed by Knowles Electronics, LLC, published 2023-07-06. The claim ties a physical mass-distribution feature on the diaphragm paddle directly to a frequency-response outcome, a structure-to-function link that is characteristic of the strongest claims in this corpus.
| # | Publication no. | Patent title | Citations |
|---|---|---|---|
| 1 | US20220210576A1 | Balanced armature receiver having diaphragm with elastomer surround | 3 |
| 2 | US20230217153A1 | Balanced Armature Receiver with Liquid-Resistant Pressure Relief Vent | 2 |
| 3 | US11564039B2 | Balanced armature receiver and diaphragms therefor | 2 |
| 4 | US20250294289A1 | Multicoil Balanced Armature Receiver | 1 |
| 5 | CN218920601U | 平衡电枢接收器 | 1 |
| 6 | US11706561B1 | Balanced armature receiver with liquid-resistant pressure relief vent | 1 |
| 7 | US20220232323A1 | Balanced armiture receiver and diaphragms therefor | 1 |
| 8 | US11399235B1 | Balanced armature receiver | 1 |
Citation counts inside this searched corpus favour older filings and should be read as a signal of influence within the set, not as a measure of current commercial importance.
Patent titles are shown in the language they were filed in, not translated, so that each record stays verifiable against the original filing — a translated title will not match in Eureka or in any national register. Publication numbers are shown where the record carries one (8 of 8 rows); clicking a row searches Eureka by that number.
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Browse MCP servers →What the numbers say about this field
Read together, the filing trend, class concentration and receiving-office split point to a mature, narrowly claimed niche rather than an emerging one.
No long tail
The top 4 and top 5 combined figures are identical at 100.0% of all 24 records in scope, because the ranking itself only returns four assignees. This is a field where a small number of parties hold the entire documented claim space rather than one led by a handful of firms above a broad tail of small filers.
Past its filing peak
Activity rose to 11 records in 2022, the high point of the trend, then fell to 2 by 2024 — a 71% decline over that three-year span. Because 2025-2026 filings are still being published, this should be read as a completed contraction through 2024 rather than a live downward trend.
Tight technical boundary
22 of 24 records carry an H04R loudspeaker/transducer classification, leaving very little of the corpus in adjacent classes. Filing here is almost entirely about transducer mechanics — diaphragm, armature, magnet circuit — rather than about downstream signal processing or system integration.
US-anchored filing strategy
The United States receives more than half of the tracked filings, with China and the Philippines each drawing five and a single PCT filing routed through WIPO. That split suggests protection strategy centres on the US market first, with manufacturing-adjacent jurisdictions covered selectively rather than filed everywhere.
Eureka can read the same corpus for gaps instead of for coverage: under-claimed branches adjacent to micro speaker and receiver acoustic design, with the prior art for and against each one.
Who holds the claim space
Four assignees make up the entire ranked field, with one clear leader and three much smaller filers behind it.
A single dominant filer
One assignee holds 21 of the 24 records in this corpus, an outsized share of a field this narrow. Anyone designing a balanced armature receiver or micro speaker diaphragm should expect the leader's claim set to be the first prior-art check.
Filing has gone quiet across the board
None of the four ranked assignees show filings in the latest tracked year, and the one with a stated year-over-year figure shows a -100% change. Read this alongside the publication lag: recent quarters are still filling in, so a quiet latest year is expected rather than a sign the field has been abandoned.
No long tail to track
Because the ranking is limited to four assignees who together account for every record in scope, there is no fragmented long tail of small filers to monitor separately. Competitive tracking in this niche is a short list, not a broad watch.
| Assignee | Recent year | YoY |
|---|---|---|
| Knowles Electronics, LLC | 0 | — |
| Suzhou Yeud Electronics Co., Ltd. | 0 | — |
| Sonion Netherlands B.V. | 0 | -100% |
| CHRISTOPHER MONTI | 0 | — |
Where to take this analysis
The dataset points to a small set of concrete next steps for anyone filing or designing in this space.
Check the leader's full claim set before filing
With one assignee holding 21 of 24 records, a freedom-to-operate check on diaphragm and magnet-circuit claims should start there rather than across the whole ranked field.
Explore assignee claims in EurekaWatch the under-claimed branches
Liquid-resistant venting, multicoil drive geometry and assembly-tolerance compensation show thinner claim density than the core diaphragm work — each is a plausible filing gap.
Map white space in EurekaTrack the next complete filing year
2024 is the most recent complete year in this dataset; treat 2025-2026 figures as provisional until later publication catches up.
Monitor filing trends in EurekaCommon questions about this landscape
In this dataset of 24 records, one assignee holds 21 of them, making it by far the dominant filer in balanced armature receiver design. The remaining three ranked assignees account for the rest of the corpus with far smaller counts. Anyone evaluating freedom to operate in this space should treat that leader's claim portfolio as the primary reference point rather than spreading review evenly across all four ranked parties.
Filing activity rose to a peak of 11 records in 2022 and had fallen to 2 by 2024, a 71% decline over that three-year span. Because patent publication typically lags filing by around 18 months, the 2025 and 2026 figures in this dataset are still incomplete and should not be read as confirming a continued decline. The safest read is that filing has cooled from its 2022 peak through the last complete year of data, 2024.
H04R, the loudspeaker and audio transducer classification, covers 91.7% of the 24 records in scope, making this an overwhelmingly transducer-mechanics-focused corpus. Claims concentrate on diaphragm structure, magnet circuit design and related mechanical features rather than on downstream audio signal processing. A filer looking for adjacent, less-crowded ground would look outside core H04R diaphragm and armature claims.
The filing, from Knowles Electronics, describes a balanced armature receiver diaphragm with a paddle carrying an area of concentrated mass near its centre, where that added mass shifts the paddle's bending-mode frequency lower than it would be without it. It is a structure-to-function claim tying a specific physical mass-distribution feature to a frequency-response outcome. Designers working on receiver diaphragm frequency tuning should review this claim closely, since a similar mass-loading approach on a paddle diaphragm could fall within its scope.
Based on the sub-areas covered by this corpus, liquid-resistant pressure relief venting, multicoil armature drive geometry, elastomer diaphragm surround materials, assembly-tolerance compensation structures and waterproof mesh acoustic impedance all show thinner claim coverage than the core diaphragm and magnet-circuit work. These are reasonable areas to search further before assuming freedom to operate, since low visible claim density in a narrow corpus like this one can reflect either genuine white space or simply a gap in this particular search string's coverage.
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Disclaimer. This page is generated from Patsnap Eureka data drawn from a limited snapshot of global patent and scientific-literature records, and is provided for general information and reference only.
Patent data carries inherent limitations: recent filings (typically the most recent 18–24 months) are under-counted due to standard publication lag; counts may be reported at either a patent-family or a patent-record basis and are not always directly comparable; classification, applicant-name, and citation data may contain errors, duplicates, or omissions; and the underlying search query defines and constrains the scope shown. As a result, the analysis may be incomplete or inaccurate and may not reflect the full technology landscape.
Nothing on this page constitutes an exhaustive prior-art, novelty, freedom-to-operate, or validity search, nor does it constitute legal, financial, investment, or professional advice, and it should not be relied upon as such. Any patent, commercial, or strategic decision should be verified independently and reviewed with qualified patent, legal, and domain professionals. Patsnap makes no warranties, express or implied, as to the accuracy, completeness, or fitness for any particular purpose of the information presented.
Machine translation. Assignee and organisation names originally recorded in Chinese, Japanese or Korean have been rendered into English by an AI translation step so that the tables stay readable. These renderings are best-effort and may not match a company’s registered English name; the original name is what the underlying patent record carries, and it is what any Eureka query launched from this page uses.