MEMS Microphone Reliability Patents: Who Leads, Filing Trends 2026
- Filing has cooled since 2020. The peak year for this reliability-specific claim set was 2020 at 12 families; by the 2022 midpoint activity had dropped to 7, and the trend has not recovered since.
- The claim set is concentrated in one IPC pairing. Every record sits in H04R (audio transducers), and nearly half also carry a B81B (MEMS microstructure) code — the two together define almost the entire field.
- Co-filing between assignees is rare. Across 51 families there are only two co-assignee pairs, both intra-group filings by the same parent organisation rather than cross-company collaboration.
Filing growth compares 2021 (4 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. Top-5 share is the combined record count of the five largest assignees divided by all 51 records in scope (CR5), not by the ranked leaders only.
What this landscape covers
This dataset isolates patent families that combine MEMS microphone or silicon microphone claim language with reliability-specific terms — dust and water ingress, drop reliability, acoustic overload, and long-term stability — inside the transducer and MEMS-structure IPC classes (H04R19/04, H04R1/08, B81B7). It is a narrower cut than general MEMS microphone filing activity: a MEMS microphone patent that only claims sensitivity or frequency response, with no durability or environmental-robustness language, falls outside this set.
Filing runs from 2015 through the 2026 cut-off, with 2026 necessarily partial and the most recent full years understated because publication typically lags filing by around 18 months. The receiving-office split — weighted toward the United States, with a secondary China cluster and smaller EPO and WIPO filings — points to where reliability claims are being prosecuted first, not necessarily where the underlying R&D happens.
Filing trend and technology composition
Two views of the same 51-family set: the year-by-year filing curve, and how those families distribute across IPC subclasses.
Filing trend, 2017–2026
Filings rose to a peak of 12 in 2020, held near that level through 2021, then eased back — 7 families at the 2022 midpoint — and have not climbed again. Treat the final one or two years as undercounts given publication lag rather than as a real drop-off.
IPC subclass distribution
H04R (audio transducers) covers the full set by definition of the search; B81B (MEMS microstructures) appears in roughly half of records, with B81C (MEMS manufacturing) a distant third. G01L, G10L, H03M, C23C and H01L each appear in only one or two families, marking them as peripheral rather than core claim territory.
Shares are the percentage of the 51 records in scope. A patent can carry several IPC classes, so the shares add up to more than 100%.
Go deeper on MEMS Microphone Reliability and Durability with Eureka
This page is one run against one query. Ask Eureka your own question about mems microphone reliability and durability and every answer comes back with the patent numbers behind it.
Try EurekaMost-cited records in this set
Discrete MEMS Including Sensor Device — US20160037245A1 (Knowles Electronics, LLC, 2016-02-04)
A micro electro mechanical system (MEMS) microphone includes a base; a MEMS device disposed on the base, the MEMS device comprising a diaphragm and a back plate; a condition sensor disposed on the base; and an integrated circuit coupled to the condition sensor and the MEMS device. The MEMS device operates to detect acoustic signals in a first frequency range and the condition sensor acts as a condition sensor in the first frequency range. The condition sensor acts as a microphone in a second frequency range and the MEMS device is unused so as to extend the operating range and acoustic overload point of the MEMS device.Notable for pairing a dedicated condition sensor with the acoustic MEMS element specifically to push out the acoustic overload point — a structural approach to overload robustness rather than a signal-processing one.
| # | Publication no. | Patent title | Citations |
|---|---|---|---|
| 1 | US20180063644A1 | Digital Silicon Microphone with Configurable Sensitivity, Frequency Response and Noise Transfer Function | 28 |
| 2 | US10343898B1 | MEMS microphone with tunable sensitivity | 22 |
| 3 | US20160037245A1 | Discrete MEMS Including Sensor Device | 19 |
| 4 | US20200339411A1 | MEMS microphone | 17 |
| 5 | CN110022519A | 微机电系统麦克风 | 16 |
| 6 | US20190210866A1 | MEMS microphone with tunable sensitivity | 14 |
| 7 | US20190306633A1 | Sensor device and manufacturing method thereof | 13 |
| 8 | US20180352337A1 | MEMS Sound Transducer, MEMS Microphone and Method for Providing a MEMS Sound Transducer | 13 |
| 9 | US20180167730A1 | Microelectromechanical systems (MEMS) microphone feedback filtering | 13 |
| 10 | US20190352176A1 | System of Non-Acoustic Sensor Combined with MEMS Microphone | 11 |
Citation counts accumulate over time inside this searched corpus, so older filings are structurally favoured — read this as a map of influence on later filers, not a ranking of current relevance.
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 filing curve, the IPC split and the citation table.
Growth has flattened, not accelerated
The reliability-specific claim set peaked in 2020 and had already eased to 7 families by the 2022 midpoint. Combined with a 2026 count of zero (partial year), the honest reading is a flat-to-declining filing curve once publication lag is accounted for, not a growth story.
Nearly all activity sits on two IPC codes
Every family in this set carries an H04R code and roughly half also carry B81B — meaning the reliability claim space is being contested almost entirely inside transducer-structure and MEMS-microstructure classifications, with manufacturing (B81C) and adjacent sensing classes a minor presence.
Almost no cross-company co-filing
Only two co-assignee pairs appear in the entire set, and both link entities under the same corporate parent rather than independent companies. Reliability claims here are being built and defended by single organisations, not joint ventures.
Eureka can read the same corpus for gaps instead of for coverage: under-claimed branches adjacent to mems microphone reliability and durability, with the prior art for and against each one.
Who is active, and where the gaps sit
Assignee activity is dominated by a small group of MEMS microphone specialists and IDMs, with a long tail of single-family entrants. Recent-year momentum has cooled across the board.
Every tracked leader shows zero in the most recent year
The assignees with the deepest reliability-claim histories in this set — spanning MEMS microphone specialists, an IDM, and a foundry group — all show zero filings in the latest tracked year. That is consistent with the overall flat-to-declining trend, though the most recent year is also the most affected by publication lag.
Prosecution is concentrated in the United States
Two-thirds of records in this set were filed at the USPTO, with China a secondary venue and EPO/WIPO filings a small remainder. That skew shapes where litigation and freedom-to-operate risk actually materialises for a reliability claim.
Related entities file together, competitors do not
The strongest co-assignee link in the dataset connects two entities from the same foundry group; the next pair links two units of the same acoustics manufacturer. No cross-organisation joint filings appear at all.
| Assignee | Recent year | YoY |
|---|---|---|
| Fortemedia, Inc. | 0 | — |
| GoerTek Microelectronics Co., Ltd. | 0 | — |
| Infineon Technologies AG | 0 | — |
| Robert Bosch GmbH (Germany) | 0 | — |
| InvenSense, Inc. | 0 | — |
| Semiconductor Manufacturing International (Beijing) Corporation | 0 | — |
| Semiconductor Manufacturing International (Shanghai) Corporation | 0 | — |
| Facebook Technologies, LLC | 0 | — |
Turning this landscape into a filing decision
A citation table and an IPC chart tell you where the crowd is. They do not tell you whether your own draft claim survives it.
Check your claim against the cited set
The five most-cited records in this set define the prior art a reliability claim in this space is most likely to be measured against, especially anything touching acoustic overload point or configurable sensitivity.
Run a claim comparison in Patsnap EurekaTrack the leaders' filing cadence
With every tracked leader at zero filings in the latest year, a fresh filing from a new entrant may face less active competition for priority than the five-year history suggests.
Set up assignee monitoring in Patsnap EurekaFrequently asked questions
This dataset identifies 51 patent families that combine MEMS or silicon microphone claim language with reliability-specific terms such as drop reliability, dust and water ingress, acoustic overload, or long-term stability, within the H04R19/04, H04R1/08 and B81B7 classification codes. That is a narrow, purpose-built subset of the broader MEMS microphone patent literature, not a count of every MEMS microphone patent filed. Filing runs from 2015 through mid-2026, with the final year necessarily partial.
The filing curve peaked in 2020 at 12 families and had already eased to 7 by the 2022 midpoint, with the tracked leaders all showing zero filings in the most recent year. Some of that recent softness is publication lag — filings typically take about 18 months to appear in the record — but even accounting for lag, the trend reads as flat to declining rather than accelerating. Anyone entering this space now is not chasing a hot filing race.
H04R (loudspeakers and audio transducers) covers every record in this set by construction of the search, and B81B (MEMS microstructural devices) appears in roughly half of them, making these two codes the core of the field. B81C (MEMS manufacturing) is a distant third, and codes like G01L, G10L, H03M, C23C and H01L each appear in only one or two families. A freedom-to-operate search here should weight H04R and B81B heavily and treat the rest as peripheral checks.
Rarely. Across all 51 families there are only two co-assignee pairs, and both connect entities that belong to the same corporate group — a foundry's two manufacturing subsidiaries in one case, and an acoustics manufacturer's two business units in the other. There is no evidence in this dataset of independent companies jointly filing reliability patents, which suggests these claims are being developed and defended as proprietary single-owner assets.
US20160037245A1, assigned to Knowles Electronics, claims a MEMS microphone architecture that adds a dedicated condition sensor alongside the diaphragm and back plate specifically to extend the device's operating range and push out its acoustic overload point. It is the most structurally distinctive record in this citation set because it addresses overload robustness through added sensing hardware rather than through signal processing or diaphragm material changes. Designers targeting acoustic overload performance should check whether their approach reads on this condition-sensor structure or takes a genuinely different route, such as software-based gain switching or diaphragm stiffness tuning.
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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.