Process Temperature Sensors Patents: Who Leads, Where the Gaps Are 2026
Process Temperature Sensors Patents: Filing Trends and Where the Field Is Still Open
Filing has cooled from its 2019 peak. 251 records that year against 23 so far in the most recent (partial) year, with the last complete three-year span down 42% from 2021 to 2024. Filings ran from 172 in 2017 to a peak of 251 in 2019, then declined; the last complete three-year comparison shows 179 records in 2021 falling to 104 in 2024, a 42% drop. Readers should not extend that decline into 2025-2026 — those years are still publishing.
- 1WATLOW ELECTRIC MANUFACTURING CO4.1%
- 2FRACTYL HEALTH INC3.6%
- 3BIOLINQ INC3.2%
- 4CIRCUIT THERAPEUTICS INC2.8%
- 5EATON CUMMINS AUTOMATED TRANSMISSION TECHNOLOGIES LLC2.8%
See the full process temperature sensors 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 process temperature sensor patents
How many patents exist for process temperature sensors?
This dataset contains 2,868 published patent records filed or published between 2015 and mid-2026 that match industrial temperature-sensing hardware terms combined with performance criteria like response time and insulation resistance. The true figure for the broader field is larger, since this scope excludes general temperature sensing without a process-performance angle. Because publication lags filing by roughly 18 months, the most recent one to two years are still under-counted.
Who are the leading patent holders in process temperature sensors?
The ranking covers 100 companies, with the leader holding 117 records and the top 5 combined accounting for 16.5% of all 2,868 records in scope. That is a meaningful lead but not a dominant one — the field has a long tail of assignees rather than a small handful of gatekeepers. Both industrial instrumentation makers and medical device companies appear among the ranked leaders, reflecting the overlap between temperature measurement and diagnostic device classes.
Is patent filing activity in this space growing or slowing?
Filing peaked at 251 records in 2019 and the last complete three-year comparison, 2021 to 2024, shows a 42% decline from 179 to 104 records. That reads as a genuine cooling rather than a data artefact, since 2021-2024 are all complete years. Figures for 2025 and 2026 will rise as publications catch up, so it is too early to call the field in continued decline based on those years alone.
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 Process Temperature Sensors covering 2015–2026, data cut-off 2026-07-31. 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.