Full-decay induced polarization detection system and method for water inrush in tunnels
US-12372681-B1 · Jul 29, 2025 · US
Operating with fields produced by spontaneous potentials, e.g. electrochemicals or produced by telluric currents
Operating with fields produced by spontaneous potentials, e.g. electrochemicals or produced by telluric currents · Cooperative Patent Classification (CPC)
Computing, optics, measurement, and control technologies.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | G01V3/265 |
| Official title | {Operating with fields produced by spontaneous potentials, e.g. electrochemicals or produced by telluric currents} |
| Display label | Operating with fields produced by spontaneous potentials, e.g. electrochemicals or produced by telluric currents |
| Total patents | 26 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 4 |
| 2017 | 3 |
| 2018 | 3 |
| 2019 | 4 |
| 2020 | 3 |
| 2021 | 1 |
| 2022 | 3 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Coal Spontaneous Combustion Downhole Detection System and Method Based on Self-Potential Method
US-2025123418-A1 · Apr 17, 2025 · US
Capacitive electromagnetic formation surveillance using passive source
US-11346973-B2 · May 31, 2022 · US
Electrical isolation to reduce magnetometer interference
US-11333014-B2 · May 17, 2022 · US
Systems and methods for detecting seismo-electromagnetic conversion
US-11307324-B2 · Apr 19, 2022 · US
Electromagnetic receiver tracking and real-time calibration system and method
US-10948620-B2 · Mar 16, 2021 · US
Method for monitoring salinity within an underground formation
US-10801321-B2 · Oct 13, 2020 · US
Capacitive electromagnetic formation surveillance using passive source
US-2020319365-A1 · Oct 8, 2020 · US
Capacitive electromagnetic formation surveillance using passive source
US-10705240-B2 · Jul 7, 2020 · US
Method for monitoring salinity within an underground formation
US-2019323344-A1 · Oct 24, 2019 · US
Systems and methods for detecting seismo-electromagnetic conversion
US-2019293832-A1 · Sep 26, 2019 · US
Electromagnetic receiver tracking and real-time calibration system and method
US-2019285766-A1 · Sep 19, 2019 · US
Electromagnetic receiver tracking and real-time calibration system and method
US-10338262-B2 · Jul 2, 2019 · US
Capacitive electromagnetic formation surveillance using passive source
US-2018329103-A1 · Nov 15, 2018 · US
Electromagnetic receiver tracking and real-time calibration system and method
US-2018252836-A1 · Sep 6, 2018 · US
Electromagnetic receiver tracking and real-time calibration system and method
US-9983326-B2 · May 29, 2018 · US
System and method for measuring downhole parameters
US-9841525-B2 · Dec 12, 2017 · US
Time-lapse time-domain reflectometry for tubing and formation monitoring
US-9798035-B2 · Oct 24, 2017 · US
Electrical isolation to reduce magnetometer interference
US-2017242145-A1 · Aug 24, 2017 · US
Measurement while drilling spontaneous potential indicator using differential magnetometers
US-9411065-B2 · Aug 9, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC G01V3/265?
- CPC G01V3/265 is the Cooperative Patent Classification code for “Operating with fields produced by spontaneous potentials, e.g. electrochemicals or produced by telluric currents.”
- How many patents are filed under CPC G01V3/265 (Operating with fields produced by spontaneous potentials, e.g. electrochemicals or produced by telluric currents)?
- Our database includes 26 publications tagged with this CPC code.
- Is patent activity under CPC G01V3/265 growing?
- Publication counts under this code: 3 in 2022 vs 2 in 2025 (latest complete years).