Apparatus and methods to find a position in an underground formation
US-10139516-B2 · Nov 27, 2018 · US
by measuring the impedance of the search coil; by measuring features of a resonant circuit comprising the search coil (measuring impedance or characteristics derived therefrom G01R27/00, e.g. quality factor G01R27/26)
by measuring the impedance of the search coil; by measuring features of a resonant circuit comprising the search coil (measuring impedance or characteristics derived therefrom G01R27/00, e.g. quality factor G01R27/26) · Cooperative Patent Classification (CPC)
Computing, optics, measurement, and control technologies.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | G01V3/101 |
| Official title | {by measuring the impedance of the search coil; by measuring features of a resonant circuit comprising the search coil (measuring impedance or characteristics derived therefrom G01R27/00, e.g. quality factor G01R27/26)} |
| Display label | by measuring the impedance of the search coil; by measuring features of a resonant circuit comprising the search coil (measuring impedance or characteristics derived therefrom G01R27/00, e.g. quality factor G01R27/26) |
| Total patents | 220 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 12 |
| 2016 | 16 |
| 2017 | 21 |
| 2018 | 30 |
| 2019 | 27 |
| 2020 | 20 |
| 2021 | 24 |
| 2022 | 17 |
| 2023 | 20 |
| 2024 | 13 |
| 2025 | 18 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Media infeed metal detection
US-10099878-B1 · Oct 16, 2018 · US
Wireless power transmission system and power transmission device of wireless power transmission system
US-10097047-B2 · Oct 9, 2018 · US
Foreign object detecting circuit and wireless power transmission device using the same
US-2018205269-A1 · Jul 19, 2018 · US
Vehicle detection loop and loop deterioration assessment
US-10024993-B2 · Jul 17, 2018 · US
Proximity sensor
US-9971056-B2 · May 15, 2018 · US
Utility locator apparatus, systems, and methods
US-9945976-B2 · Apr 17, 2018 · US
Current sensor
US-2018045762-A1 · Feb 15, 2018 · US
Detection apparatus, power supply system, and method of controlling detection apparatus
US-9892848-B2 · Feb 13, 2018 · US
Vehicle detection loop and loop deterioration assessment
US-9885799-B1 · Feb 6, 2018 · US
Utility locating transmitter apparatus and methods
US-9880309-B2 · Jan 30, 2018 · US
Foreign-object detecting device, wireless electric-power transmitting device, and wireless electric-power transmission system
US-2017363763-A1 · Dec 21, 2017 · US
Magneto-Optical Detecting Apparatus and Methods
US-2017343695-A1 · Nov 30, 2017 · US
Systems and methods for sensing external magnetic fields in implantable medical devices
US-2017322266-A1 · Nov 9, 2017 · US
Method for foreign object detection for an induction charging device and induction charging device
US-2017302111-A1 · Oct 19, 2017 · US
Foreign-object detecting device, wireless electric-power transmitting device, and wireless electric-power transmission system
US-9784878-B2 · Oct 10, 2017 · US
Rogue object detection algorithm for wireless charging notification
US-2017285207-A1 · Oct 5, 2017 · US
Wireless power transmission system and power transmission device of wireless power transmission system
US-2017288412-A1 · Oct 5, 2017 · US
Power receiving device, electric circuit, and power supply device
US-2017269251-A1 · Sep 21, 2017 · US
Systems and methods for sensing external magnetic fields in implantable medical devices
US-9766307-B2 · Sep 19, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC G01V3/101?
- CPC G01V3/101 is the Cooperative Patent Classification code for “by measuring the impedance of the search coil; by measuring features of a resonant circuit comprising the search coil (measuring impedance or characteristics derived therefrom G01R27/00, e.g. quality factor G01R27/26).”
- How many patents are filed under CPC G01V3/101 (by measuring the impedance of the search coil; by measuring features of a resonant circuit comprising the search coil (measuring impedance or characteristics derived therefrom G01R27/00, e.g. quality factor G01R27/26))?
- Our database includes 220 publications tagged with this CPC code.
- Is patent activity under CPC G01V3/101 growing?
- Publication counts under this code: 13 in 2024 vs 18 in 2025 (latest complete years).