MEMS Speakers Patents: Top Companies & Filing Trends 2026
- One assignee alone accounts for 38 of 115 records, while the ranked field runs 29 companies deep before the trail thins to single filers.
- Filings grew 29% from 2021 to 2024, climbing to a peak of 25 records in 2022 before the most recent, still-incomplete years.
- H04R loudspeaker claims cover 93.9% of records, but only 21.7% also carry a B81B microstructure class — most filings protect the transducer, not the MEMS build.
Filing growth compares 2021 (7 records) with 2024 (9) — 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. Top-5 share is the combined record count of the five largest assignees divided by all 115 records in scope (CR5), not by the ranked leaders only.
What this landscape covers
This dataset tracks published patent families addressing MEMS speakers and MEMS loudspeakers, filtered to documents whose claims or description discuss sound pressure level, displacement amplitude, harmonic distortion, chamber sealing, thermal reliability or package volume. These are the engineering levers that separate a MEMS transducer that meets consumer-audio specifications from one that stays a lab prototype, so the filter concentrates the set on filings that engage with actual performance trade-offs rather than passing mentions of MEMS audio.
115 records fall inside the window from 2015-01-01 to the 2026-07-31 cut-off. Because publication trails filing by roughly 18 months, the counts for 2025 and 2026 are still filling in and should not be read as a slowdown.
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Filing trend and technology composition
Two views of the same 115 records: how filing activity moved year over year, and which IPC subclasses the claims actually sit in.
A decade of uneven growth, peaking in 2022
Filings rose from a single record in 2017 to a peak of 25 in 2022, then continued at a lower but still active pace. The +29% climb from 7 records in 2021 to 9 in 2024 is the cleanest complete-year comparison available; treat 2025 and 2026 figures as undercounts until later publication catches up.
Loudspeaker claims dominate; MEMS-structure claims are a minority overlay
H04R (loudspeakers and audio transducers) appears in 93.9% of the 115 records, confirming that nearly every filing is fundamentally an audio-transducer claim. B81B (microstructural MEMS devices) reaches only 21.7%, and B81C (MEMS manufacturing) just 2.6% — the fabrication and micro-structural mechanics of these devices are comparatively lightly claimed against the transducer function itself.
Shares are the percentage of the 115 records in scope. A patent can carry several IPC classes, so the shares add up to more than 100%.
Go deeper on MEMS Speakers and Micro Actuation with Eureka
This page is one run against one query. Ask Eureka your own question about mems speakers and micro actuation and every answer comes back with the patent numbers behind it.
Try EurekaMost-cited records and a representative filing
US20230217192A1 — MEMS speaker and speaker assembly structure
A MEMS speaker built from a substrate, a vibration sounding portion and a baffle plate with a through hole, where the baffle plate, substrate and vibration portion together enclose a sounding inner cavity. The volume of that cavity is sized to tune the cavity's resonant frequency to a preset target frequency of the speaker. A companion speaker assembly structure encloses a further sounding cavity between the speaker and a baffle plate, with a fixing portion sealing the assembly.Filed by AAC Microtech (Changzhou) Co., Ltd., published 2023-07-06.
| # | Publication no. | Patent title | Citations |
|---|---|---|---|
| 1 | US20170230756A1 | MEMS loudspeaker device and corresponding manufacturing method | 38 |
| 2 | CN110442907A | 压电式MEMS扬声器基本特性的数值仿真分析方法 | 36 |
| 3 | US9980051B2 | MEMS loudspeaker having an actuator structure and a diaphragm spaced apart therefrom | 31 |
| 4 | US20200252710A1 | Loudspeaker assembly and headphones for spatially localizing a sound event | 27 |
| 5 | US20170064457A1 | Generation of audio and ultrasonic signals and measuring ultrasonic response in dual-mode MEMS speaker | 27 |
| 6 | US20160286319A1 | Pico-speaker acoustic modulator | 18 |
| 7 | CN112543408A | 一种封闭式振动膜压电MEMS扬声器及其制备方法 | 15 |
| 8 | US20170094418A1 | MEMS Loudspeaker Having an Actuator Structure and a Diaphragm Spaced Apart Therefrom | 13 |
| 9 | CN112637748A | 双环形环绕圆形振动膜的压电MEMS扬声器及制备方法 | 12 |
| 10 | US20170048624A1 | Loud Speaker Arrangement with Circuit-Board-Integrated ASIC | 10 |
Citation counts reflect influence within this searched corpus and skew toward older filings; recency is not the same as impact here.
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. Each row carries its publication number; clicking a row searches Eureka by that number.
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Three read-throughs from the concentration, trend and classification data above.
The leaderboard is short and steep
The top 5 assignees combined hold 71 of the 115 records in scope — 61.7% of the field — before the ranking extends out to 29 companies total. A fifth-place assignee holds just 4 records and tenth place holds 3, so the drop-off from leader to mid-table is sharp rather than gradual.
Filing activity is still climbing, not plateauing
Annual filings grew from 7 in 2021 to 9 in 2024, a 29% increase over that span, after peaking at 25 in the single year 2022. The apparent dip after 2022 is partly a publication-lag artefact rather than a genuine retreat from the space.
Transducer claims outnumber microstructure claims by a wide margin
H04R covers 93.9% of the 115 records while B81B, the microstructural MEMS class, covers only 21.7%. Manufacturing-specific claims under B81C sit at just 2.6%. Most applicants are protecting the acoustic transducer design rather than the underlying MEMS fabrication or structural mechanics.
Eureka can read the same corpus for gaps instead of for coverage: under-claimed branches adjacent to mems speakers and micro actuation, with the prior art for and against each one.
The assignee landscape
29 companies make up the entire ranked field returned for this search — not a top-50 or top-100 cut, the whole list the dataset produces. A single leader holds 38 records, more than a third of the total, while the tail thins quickly toward single-filing entrants.
One portfolio dominates the count
The leading assignee's 38 records already exceed the combined total of the next several places, making this the single portfolio any competitive or clearance review should examine first.
Ten assignees account for over three-quarters of filings
The top 10 combined reach 89 of the 115 records in scope, 77.4% of the total. The remaining 19 ranked assignees and any unranked entrants share the rest, largely as single- or double-digit filers.
Filing is mostly independent, with a few internal clusters
Only three co-assignee pairs appear in the dataset, and the strongest of them links two units of the same corporate group. This points to filing being handled largely business-unit by business-unit rather than through broad external co-development.
| Assignee | Recent year | YoY |
|---|---|---|
| USound | 0 | — |
| AAC Kaitai Technologies (Wuhan) Co., Ltd. | 0 | -100% |
| NordicNeuroLab | 0 | — |
| Tianjin University | 0 | — |
| AAC Acoustic Technologies (Shenzhen) Co., Ltd. | 0 | — |
| Fortemedia Inc. | 0 | — |
| Beijing Institute of Technology | 0 | -100% |
| DSP Group | 0 | — |
Where to take this next
The dataset points to specific next steps depending on whether the goal is clearance, sourcing or claim drafting.
Run a freedom-to-operate check against the leading portfolios
With 61.7% of records held by the top 5 assignees, a clearance search that starts with those portfolios covers most of the crowded ground before expanding outward.
Explore assignee portfolios in EurekaTrack the MEMS-structure and manufacturing classes separately
B81B and B81C claims sit well below H04R's coverage, so monitoring these classes on their own can surface emerging fabrication approaches before they show up in the main transducer searches.
Set up class-level monitoring in EurekaWatch for the 2025-2026 publication catch-up
Because publication lags filing by about 18 months, re-running this trend in a few quarters will clarify whether the post-2022 pace is holding or genuinely declining.
Revisit this landscape in EurekaCommon questions on MEMS speaker patents
One assignee leads the field with 38 of the 115 records in scope, well ahead of the rest of the ranked list. The ranking covers 29 companies in total, and concentration drops off quickly: fifth place holds only 4 records and tenth place holds 3. Anyone doing competitive tracking or clearance work should treat the leader's portfolio as the first stop, since it alone accounts for a third of all filings in this dataset.
Yes, on the most reliable comparison available: filings rose from 7 in 2021 to 9 in 2024, a 29% increase, after an earlier peak of 25 records in 2022. Counts for 2025 and 2026 look lower, but that reflects the roughly 18-month lag between filing and publication rather than a real drop in activity. A fair read of momentum should wait for those later years to finish publishing before drawing conclusions.
The large majority of records, 93.9% of 115, sit in IPC class H04R, covering loudspeakers and audio transducers generally. A smaller share, 21.7%, also carries B81B for microstructural MEMS devices, and just 2.6% touches B81C, MEMS manufacturing specifically. This means most patenting activity protects the acoustic transducer function itself, with comparatively less claimed around the underlying MEMS fabrication process.
The classification data points to MEMS-structure and manufacturing claims as the thinner areas, since B81B and B81C together cover a small fraction of records compared with the near-universal H04R coverage. Specific technical branches worth checking include cavity-volume resonance tuning, wafer-level chamber sealing, thermal reliability under sustained drive, and dual-mode audio/ultrasonic actuation. These are areas where the core acoustic function is well covered but the enabling MEMS engineering is not as densely claimed.
It is concentrated at the top and long-tailed below it. The top 5 assignees hold 61.7% of all 115 records, and the top 10 hold 77.4%, leaving the remaining 19 ranked companies and any unranked filers to share a small remainder. Co-assignee filing is rare, with only three co-assignee pairs identified in the dataset, suggesting most companies are filing independently rather than through joint development arrangements.
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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.