Chemical & Gas Sensors Patents: Top Companies & Filing Trends 2026
Chemical and gas sensor patents: who is filing, what they claim, and where the field is still open
Filing has cooled from its 2019 peak. 523 records that year against 49 so far in the most recent (partial) year, with the 2021-to-2024 span down 36% from 502 to 323 filings. Annual filings climbed to 523 in 2019, the high point of the series that opened at 438 in 2017. The 2021-to-2024 window — the last stretch fully cleared for publication — fell 36%, from 502 to 323 records; years after 2024 are still filling in and should not be read as a continued decline.
- 1STRONG FORCE IOT PORTFOLIO 2016 LLC4.6%
- 2FORD GLOBAL TECH LLC3.2%
- 3SIGMASENSE LLC2.8%
- 4MSA TECHNOLOGY LLC2.1%
- 5MEDTRONIC INC2.0%
See the full chemical & gas sensors patent landscape analysis in Eureka
- The complete ranking, not just the top five
- Every IPC branch with its share of the corpus
- The most-cited records, and where claim space is still thin
Common questions about chemical and gas sensor patents
How many chemical and gas sensor patents have been filed recently?
The dataset in scope contains 7,840 published patent records filed between 2015 and the 2026 data cut-off. Annual filings peaked at 523 in 2019 and the most recently fully-published window, 2021 to 2024, shows a 36% decline from 502 to 323 records. Figures for 2025 and 2026 are still incomplete because publication typically lags filing by around 18 months, so treat the very latest years as provisional rather than a confirmed drop-off.
Who are the leading companies filing chemical and gas sensor patents?
The field is fragmented: the leading assignee holds 359 records, and the top 5 assignees combined account for only 14.6% of the 7,840 records in scope. The ranked list covers 100 assignees spanning automotive, medical device and industrial IoT sectors rather than a handful of dominant sensor specialists. That spread means a competitive analysis needs to look well past the first few names to get a full picture of freedom-to-operate risk.
What technology areas do these patents cover?
Material analysis and testing (IPC class G01N) is the largest single category, appearing on 43.3% of the 7,840 records, reflecting the search scope’s focus on sensor readings paired with calibration and error-correction claims. Diagnosis and surgery (A61B) and digital data processing (G06F) follow at 10.3% and 8.8% respectively, with digital transmission, control systems and alarm signalling each in the mid-single digits. Because a single record can carry multiple IPC codes, these shares add up to more than 100% and should be read as overlapping coverage, not a partition of the field.
Disclaimer. This analysis is based on Patsnap Eureka data drawn from a limited snapshot of global patent records and is provided for general information and reference only. Patent data carries inherent limitations — recent filings are under-counted because of publication lag, counts may be on a record or family basis, classification and applicant-name data may contain errors or duplicates, and the underlying search query defines the scope shown — so the analysis may be incomplete or inaccurate and may not reflect the full technology landscape.
Nothing here is an exhaustive prior-art, novelty, freedom-to-operate or validity search, nor does it constitute legal, financial or professional advice, and it should not be relied upon as such. Verify independently and review with qualified patent and legal professionals before acting on it.
Method: Filing trend and technology composition. Derived from a Patsnap search on Chemical & Gas Sensors Patent Landscape covering 2015–2026, data cut-off 2026-08-31. Counts reflect published records only and shift as new filings publish. Every share divides by all records in scope. Data: Patsnap Eureka. See the full landscape report.