Thermal radiation sensor comprising an ionic conductor
US-12207552-B2 · Jan 21, 2025 · US
Temperature-sensitive devices
Temperature-sensitive devices · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H01G9/21 |
| Official title | Temperature-sensitive devices |
| Display label | Temperature-sensitive devices |
| Total patents | 34 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 4 |
| 2017 | 5 |
| 2018 | 1 |
| 2019 | 4 |
| 2020 | 3 |
| 2021 | 5 |
| 2022 | 4 |
| 2023 | 3 |
| 2024 | 2 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Thermally sensitive state change ionic redox transistor
US-11942282-B1 · Mar 26, 2024 · US
Temperature-dependent capacitor
US-11929390-B2 · Mar 12, 2024 · US
Capacitor lifespan estimation method, lifespan estimation program thereof, information processing device, and capacitor
US-11709209-B2 · Jul 25, 2023 · US
Thermo-electric capacitor
US-11626256-B2 · Apr 11, 2023 · US
Internally heated concentrated solar power (CSP) thermal absorber
US-11563160-B2 · Jan 24, 2023 · US
Thermal Radiation Sensor Comprising an Ionic Conductor
US-2022278264-A1 · Sep 1, 2022 · US
Temperature-dependent capacitor
US-2022262893-A1 · Aug 18, 2022 · US
Heat generator
US-2022254979-A1 · Aug 11, 2022 · US
Systems and methods for a power-generating thermogalvanic brick
US-11346103-B2 · May 31, 2022 · US
Thermo-electric capacitor
US-2021366659-A1 · Nov 25, 2021 · US
Systems and methods for a power-generating thermogalvanic brick
US-2021310244-A1 · Oct 7, 2021 · US
Capacitor lifespan estimation method, lifespan estimation program thereof, information processing device, and capacitor
US-2021293900-A1 · Sep 23, 2021 · US
Internally heated concentrated solar power (CSP) thermal absorber
US-11063199-B2 · Jul 13, 2021 · US
Heat energy-powered electrochemical cells
US-11049667-B2 · Jun 29, 2021 · US
Heat energy-powered electrochemical cells
US-2020402729-A1 · Dec 24, 2020 · US
Heat energy-powered electrochemical cells
US-10804040-B2 · Oct 13, 2020 · US
Heat energy-powered electrochemical cells
US-2020090877-A1 · Mar 19, 2020 · US
Heat energy-powered electrochemical cells
US-10490360-B2 · Nov 26, 2019 · US
Ammonia-based thermoelectrochemical systems and methods
US-10431842-B2 · Oct 1, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H01G9/21?
- CPC H01G9/21 is the Cooperative Patent Classification code for “Temperature-sensitive devices.”
- How many patents are filed under CPC H01G9/21 (Temperature-sensitive devices)?
- Our database includes 34 publications tagged with this CPC code.
- Is patent activity under CPC H01G9/21 growing?
- Publication counts under this code: 2 in 2024 vs 1 in 2025 (latest complete years).