Metal object detection device
US-9841524-B2 · Dec 12, 2017 · US
using several coupled or uncoupled coils (G01V3/101 takes precedence)
using several coupled or uncoupled coils (G01V3/101 takes precedence) · Cooperative Patent Classification (CPC)
Computing, optics, measurement, and control technologies.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | G01V3/104 |
| Official title | {using several coupled or uncoupled coils (G01V3/101 takes precedence)} |
| Display label | using several coupled or uncoupled coils (G01V3/101 takes precedence) |
| Total patents | 259 |
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 | 23 |
| 2016 | 25 |
| 2017 | 28 |
| 2018 | 24 |
| 2019 | 28 |
| 2020 | 29 |
| 2021 | 30 |
| 2022 | 21 |
| 2023 | 21 |
| 2024 | 18 |
| 2025 | 9 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Gain compensated tensor propagation measurements using collocated antennas
US-9835753-B2 · Dec 5, 2017 · US
Foreign matter detection device
US-2017276820-A1 · Sep 28, 2017 · US
Utility locators with retractable support structures and applications thereof
US-2017261630-A1 · Sep 14, 2017 · US
Omni-inducer transmitting devices and methods
US-2017235010-A1 · Aug 17, 2017 · US
Apparatus, System And Method For Remote Localisation Of A Marker Using Magnetic Fields
US-2017176623-A1 · Jun 22, 2017 · US
Multi-Frequency Micro Induction and Electrode Arrays Combination for Use with a Downhole Tool
US-2017168188-A1 · Jun 15, 2017 · US
Utility locating systems, devices, and methods using radio broadcast signals
US-2017160420-A1 · Jun 8, 2017 · US
Methods and apparatus for collocating electromagnetic coils and electronic circuits
US-2017148567-A1 · May 25, 2017 · US
Multi-axial antenna and method for use in downhole tools
US-9632201-B2 · Apr 25, 2017 · US
Wear member retention system for an implement
US-9632200-B2 · Apr 25, 2017 · US
Wear member retention system for an implement
US-2017022690-A1 · Jan 26, 2017 · US
Omni-inducer transmitting devices and methods
US-9494706-B2 · Nov 15, 2016 · US
Gradient antenna coils and arrays for use in locating systems
US-9488747-B2 · Nov 8, 2016 · US
Contactless Sensor
US-2016290833-A1 · Oct 6, 2016 · US
Sensor and method for foreign object detection in induction electric charger
US-2016282500-A1 · Sep 29, 2016 · US
Method for determining the position of a mobile unit and installation for executing a method
US-9453933-B2 · Sep 27, 2016 · US
Gain compensated directional propagation measurements
US-9448324-B2 · Sep 20, 2016 · US
Phase synchronized buried object locator apparatus, systems, and methods
US-9435907-B2 · Sep 6, 2016 · US
Apparatus and method for concentrating magnetic field at high resolution and magnetic field receiving device for same
US-2016249825-A1 · Sep 1, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC G01V3/104?
- CPC G01V3/104 is the Cooperative Patent Classification code for “using several coupled or uncoupled coils (G01V3/101 takes precedence).”
- How many patents are filed under CPC G01V3/104 (using several coupled or uncoupled coils (G01V3/101 takes precedence))?
- Our database includes 259 publications tagged with this CPC code.
- Is patent activity under CPC G01V3/104 growing?
- Publication counts under this code: 18 in 2024 vs 9 in 2025 (latest complete years).