Photoacoustic gas sensor and pressure sensor
US-12461019-B2 · Nov 4, 2025 · US
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by changing capacitance or inductance
by changing capacitance or inductance · Cooperative Patent Classification (CPC)
Computing, optics, measurement, and control technologies.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | G01L23/12 |
| Official title | by changing capacitance or inductance |
| Display label | by changing capacitance or inductance |
| Total patents | 8 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2017 | 1 |
| 2018 | 1 |
| 2019 | 1 |
| 2020 | 1 |
| 2021 | 1 |
| 2022 | 1 |
| 2023 | 1 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Photoacoustic Gas Sensor and Pressure Sensor
US-2023033615-A1 · Feb 2, 2023 · US
Photoacoustic gas sensor and pressure sensor
US-11519848-B2 · Dec 6, 2022 · US
Pressure sensor and method of producing the same
US-10900854-B2 · Jan 26, 2021 · US
Photoacoustic Gas Sensor and Pressure Sensor
US-2020400553-A1 · Dec 24, 2020 · US
Pressure sensor and method of producing the same
US-2019301956-A1 · Oct 3, 2019 · US
Capacitive cylinder pressure sensor
US-10139313-B2 · Nov 27, 2018 · US
Capacitive cylinder pressure sensor
US-2017023440-A1 · Jan 26, 2017 · US