MEMS Pressure Sensing Element Patent Landscape
The MEMS pressure sensing element field is dominated by a small group of aerospace, automotive, and semiconductor incumbents, with Rosemount Aerospace holding the single largest position among ranked filers. Annual filing volume has plateaued near its 2023 peak, signaling a field in late expansion rather than early growth.
Rosemount Aerospace leads a moderately concentrated field
Rosemount Aerospace Inc ranks first among the hundred largest filers, followed by Sensata Technologies Inc, Vitesco Technologies USA LLC, AMS International AG, and Robert Bosch GmbH. The top five filers collectively account for 30% of the hundred largest filers’ combined total, indicating moderate but not extreme concentration.
A clear tier gap separates the leader from the rest: Rosemount Aerospace’s patent record count is roughly 56% higher than the second-ranked Sensata Technologies, and the top four players each hold double-digit counts while the remainder cluster at ten or below. This tiered structure suggests the field has defined incumbents but retains room for challengers.
| # | Applicant | Patent records | Share |
|---|---|---|---|
| 1 | Rosemount Aerospace Inc | 25 | |
| 2 | Sensata Technologies Inc | 16 | |
| 3 | Vitesco Technologies USA LLC | 14 | |
| 4 | AMS International AG | 13 | |
| 5 | Robert Bosch GmbH | 10 | |
| 6 | STMicroelectronics International NV | 10 | |
| 7 | Memsen Electronics | 10 | |
| 8 | Infineon Technologies AG | 10 | |
| 9 | Honeywell International Inc | 7 | |
| 10 | ACT Medical Service | 7 |
| # | Applicant | Patent records | Share |
|---|---|---|---|
| 11 | Wisconsin Alumni Research Foundation | 6 | |
| 12 | MEI Micro Inc | 5 | |
| 13 | California Institute of Technology | 5 | |
| 14 | North Star Innovations | 4 | |
| 15 | Wuhan Finemems Inc | 4 | |
| 16 | MDT Corp | 4 | |
| 17 | Nguyen Tom T | 4 | |
| 18 | NXP USA Inc | 4 | |
| 19 | Zhejiang Dunan Artificial Environment Co Ltd | 4 | |
| 20 | VTT Technical Research Centre of Finland | 3 |
The leaders’ positions imply that core capacitive MEMS transducer IP is largely locked up among established aerospace and automotive suppliers, while semiconductor device specialists such as Infineon Technologies AG and STMicroelectronics occupy a parallel tier focused on integration and packaging.
Filings from the most recent 18–24 months are likely under-counted due to publication lag and should not be read as a sustained decline. Longer-window growth, applicant concentration, and technology-route coverage are therefore more reliable signals than the latest-year bar alone.
Activity peaked in 2023; pressure measurement dominates the technology mix
The annual trend chart reveals an uneven but broadly active filing cadence over the past decade, while the technology composition chart confirms that core pressure measurement (G01L) far outweighs adjacent MEMS structural and process branches.
Annual filing trend
Annual filings rose to a decade high of 20 records in 2023, then eased in 2024–2025 — a pattern consistent with publication lag compressing apparent recent-year totals rather than a genuine market retreat. The 2026 figure of zero reflects an incomplete year, not a filing pause. The multi-year window still shows a field in late-expansion rather than decline.
↗ Hover for values · click a bar to ask EurekaTechnology composition
G01L (force and pressure measurement) overwhelmingly dominates the IPC mix, reflecting the applied measurement focus of most filers. B81B (microstructural MEMS devices) and B81C (MEMS manufacturing) form a secondary tier, capturing structural and process innovation. Branches such as H01L (semiconductor devices), A61B (diagnosis and surgery), and B60C (pneumatic tyres) each carry small but non-trivial counts, pointing to application-specific extensions of core MEMS sensing technology.
↗ Hover for values · click a bar to ask EurekaHighly cited patent families surfaced by the query
Citation-heavy patent families returned by the query. Use this section as citation context, not as a curated list of the most topic-specific patents.
Microelectromechanical capacitive pressure sensor …
According to an example aspect of the present invention, there is provided a MEMS pressure sensor, comprising: a sensor portion comprising a deformable membrane and a first volume, and a valve portion comprising a first output to a first side of the pressure sensor and a second output to a second side of the pressure sensor. The valve portion is operable to… (excerpt from the patent abstract)
| # | Patent | Citations |
|---|---|---|
| 1 | Micromachined capacitive RF pressure sensor | 104 |
| 2 | Method of forming micromachined sealed capacitive … | 87 |
| 3 | Sealed capacitive pressure sensors | 79 |
| 4 | MEMS电容性压力传感器、操作方法和制造方法 | 71 |
| 5 | MEMS capacitive pressure sensor, operating method … | 59 |
| 6 | Microelectromechanical systems (MEMS) pressure sen… | 57 |
| 7 | Pressure sensor with differential capacitive output | 49 |
| 8 | MEMS pressure sensor with through-hole cap | 48 |
Ranked by total forward citations. Citation counts favour older and broadly cited patent families, and broad or adjacent patents may appear when they match the search scope. Treat this section as citation context, not as a curated list of the most topic-specific patents. Some patent titles may be shown in their original, non-English language where an accurate translation could not be guaranteed.
What the competitive structure means for R&D investment
The combination of a maturing core technology, a tiered incumbent structure, and limited recorded collaboration shapes both the risk and the opportunity profile for new entrants and existing players alike.
Field is at late-expansion / plateau stage
Annual filings have plateaued near the 2023 peak, consistent with a Maturity lifecycle designation. Core capacitive MEMS pressure transducer IP is well-established; incremental process and packaging improvements are the primary growth vector. New entrants are more likely to find traction in application-specific sub-domains — such as medical or automotive tire pressure — than in foundational transducer architecture.
Lifecycle: MaturityModerate concentration with a defined leadership tier
The top five filers hold 30% of the hundred largest filers’ combined total, and a clear gap separates the top four from the broader field. This structure rewards scale and portfolio depth but does not yet represent the near-total lock-in seen in more mature semiconductor segments. Mid-tier players such as Memsen Electronics and ACT Medical Service suggest that specialization in a vertical application can sustain a competitive position.
Competitive StructureNo co-applicant activity detected in this corpus
The collaboration evidence is pending — no co-applicant filings were identified in the current dataset. This absence suggests that MEMS pressure sensing innovation in this corpus is largely driven by single-entity filings, consistent with proprietary product development rather than open consortium activity. University filers such as Wisconsin Alumni Research Foundation and California Institute of Technology appear as independent actors rather than industry partners.
EcosystemUnited States is the primary filing jurisdiction; China is a rising secondary market
The United States leads all jurisdictions in patent records, followed by China and then the European Patent Office and WIPO PCT filings. The presence of Chinese applicants such as Memsen Electronics, Wuhan Finemems Inc, and Zhejiang Dunan Artificial Environment underscores a growing domestic Chinese MEMS sensor supply chain. Japan and South Korea together represent a smaller but established presence. Filers seeking broad protection should prioritize US, CN, and EP filing strategies.
JurisdictionGo beyond the landscape: Eureka’s TRIZ Solution agent breaks down an R&D problem and returns patented concept solutions, each with a technical approach and cited patent & literature evidence.
Co-filing pairs, ranked by the number of jointly-filed patent families.
Rosemount Aerospace and Sensata Technologies lead with complementary technology emphases
The two leading filers both concentrate on core G01L force and pressure measurement IP but diverge in secondary technology focus — Rosemount in multi-range pressure measurement, Sensata in solid-state device integration.
Rosemount Aerospace Inc
Rosemount Aerospace Inc ranks first among all filers with 25 patent records. Its technology profile is concentrated almost entirely in G01L pressure measurement sub-classes, spanning both absolute and differential pressure sensing architectures — a focus consistent with its aerospace sensing heritage. No momentum data for recent filings was flagged for the English-label record, but its absolute volume lead is substantial.
patent records: 25Sensata Technologies Inc
Sensata Technologies Inc holds 16 patent records and is flagged as a new entrant in recent filing momentum, indicating its position is being built from a small prior base. Its technology mix spans G01L pressure measurement and H10N solid-state devices, suggesting a strategy that integrates sensing with advanced transducer materials. This cross-domain emphasis differentiates Sensata from pure measurement-focused incumbents.
patent records: 16| Applicant | Recent (3 yrs) | Trend |
|---|---|---|
| Sensata Technologies Inc | 2 | ▲ new entrant |
Under-served branches adjacent to the dominant pressure measurement core
Several IPC classes tagged to this corpus carry low record counts relative to the dominant G01L branch, pointing to areas where the intersection of MEMS sensing and adjacent application domains is sparsely covered.
A61B · Diagnosis and Surgery
With only 8 patent records and a 2% share among the hundred largest filers, the medical diagnostic application of MEMS pressure sensing is sparsely represented relative to the core. Implantable and minimally invasive pressure sensors — relevant to cardiovascular monitoring and intracranial pressure — require the same capacitive transducer architectures already mature in the industrial domain. Entry could be approached by adapting existing G01L-based designs to biocompatibility and miniaturization requirements, though regulatory pathways add lead time.
Search this in Eureka →B60C · Pneumatic Tyres
Only 5 patent records in this corpus fall under B60C (pneumatic tyres), representing a 1% share. Tire pressure monitoring systems are a mandated automotive application in major markets, yet the MEMS-specific innovation layer in this corpus is thin, suggesting that most TPMS IP may be filed under broader sensor or automotive classes. A filer with MEMS process expertise could investigate this junction — particularly for high-temperature or flexible-substrate variants suited to next-generation electric vehicle architectures.
Search this in Eureka →How leaders differ across technology routes
Route coverage across the main technology branches in the current evidence set.
| Player | G01L 9 · Force & pressure measurement | G01L 19 · Force & pressure measurement | B81C 1 · MEMS manufacturing | B81B 7 · Microstructural devices (MEMS) | G01L 1 · Force & pressure measurement |
|---|---|---|---|---|---|
| Rosemount Aerospace Inc | Strong · 18 | Strong · 11 | Moderate · 4 | Moderate · 4 | Absent |
| Continental Automotive Systems Inc | Strong · 13 | Strong · 7 | Absent | Emerging · 2 | Emerging · 2 |
| Sensata Technologies Inc | Strong · 13 | Strong · 9 | Absent | Emerging · 2 | Absent |
| NXP Semiconductors | Strong · 12 | Moderate · 6 | Moderate · 3 | Absent | Absent |
| Robert Bosch GmbH | Strong · 10 | Moderate · 3 | Strong · 6 | Absent | Absent |
| STMicroelectronics | Strong · 8 | Absent | Strong · 6 | Strong · 5 | Absent |
| Freescale Semiconductor Inc | Strong · 10 | Moderate · 4 | Absent | Absent | Absent |
Frequently asked questions
Rosemount Aerospace Inc leads with 25 patent records among the top-100 ranked filers, ahead of Sensata Technologies Inc with 16 and Vitesco Technologies USA LLC with 14.
The top five filers — Rosemount Aerospace, Sensata Technologies, Vitesco Technologies, AMS International, and Robert Bosch — account for 30% of the hundred largest filers’ combined total, indicating moderate concentration with a defined leadership tier but meaningful activity across a broader set of players.
The United States leads with 109 patent records, followed by China with 54 and the European Patent Office with 49. WIPO PCT filings number 18, with smaller presences in Japan, South Korea, India, and Australia.
The field is assessed as Maturity: annual filings have plateaued near the 2023 peak. This reflects a technology in late expansion where foundational IP is well-established and incremental or application-specific innovation is the primary growth vector.
G01L (force and pressure measurement) dominates with 265 records. B81B (microstructural MEMS devices) and B81C (MEMS manufacturing) form a significant secondary tier at 83 and 67 records respectively. H01L (semiconductor devices), H10D, and H10N each carry smaller but notable counts.
Two adjacent branches stand out for their low record share: A61B (diagnosis and surgery) with 8 records and B60C (pneumatic tyres) with 5 records. Both represent established application markets where MEMS-specific IP appears sparsely developed relative to the core measurement domain, though neither represents a validated commercial opportunity without further analysis.
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