Systems and methods for measuring current output by a photodetector of a wearable sensor unit that includes one or more magnetometers
US-11131724-B2 · Sep 28, 2021 · US
with auxiliary windings (for pancake coils H01F27/2871)
with auxiliary windings (for pancake coils H01F27/2871) · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H01F27/289 |
| Official title | {with auxiliary windings (for pancake coils H01F27/2871)} |
| Display label | with auxiliary windings (for pancake coils H01F27/2871) |
| Total patents | 135 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 6 |
| 2016 | 4 |
| 2017 | 13 |
| 2018 | 4 |
| 2019 | 9 |
| 2020 | 23 |
| 2021 | 17 |
| 2022 | 21 |
| 2023 | 16 |
| 2024 | 14 |
| 2025 | 7 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Motor vehicle solenoid valve
US-10854374-B2 · Dec 1, 2020 · US
Low common mode noise transformer structure with external float wire mount
US-2020357571-A1 · Nov 12, 2020 · US
Magnetic coil support in magnetic resonance imaging method and apparatus
US-10832856-B2 · Nov 10, 2020 · US
Magnetic field generator for a magnetic field measurement system
US-2020350106-A1 · Nov 5, 2020 · US
Systems and methods for measuring current output by a photodetector of a wearable sensor unit that includes one or more magnetometers
US-2020348370-A1 · Nov 5, 2020 · US
Interface configurations for a wearable sensor unit that includes one or more magnetometers
US-2020348368-A1 · Nov 5, 2020 · US
Single controller for wearable sensor unit that includes an array of magnetometers
US-2020348369-A1 · Nov 5, 2020 · US
Systems and methods for concentrating alkali metal within a vapor cell of a magnetometer away from a transit path of light
US-2020345259-A1 · Nov 5, 2020 · US
Magnetic field generator for a magnetic field measurement system
US-2020348377-A1 · Nov 5, 2020 · US
Magnetic field measurement systems including a plurality of wearable sensor units having a magnetic field generator
US-2020348378-A1 · Nov 5, 2020 · US
Planar magnetic element
US-10825598-B2 · Nov 3, 2020 · US
Interleaved converters with integrated magnetics
US-10790081-B2 · Sep 29, 2020 · US
Wireless charger having electromagnetic shielding function
US-10790083-B2 · Sep 29, 2020 · US
Isolated transformer with integrated shield topology for reduced emi
US-2020303319-A1 · Sep 24, 2020 · US
Magnetic coil support in magnetic resonance imaging method and apparatus
US-2020211764-A1 · Jul 2, 2020 · US
Power conversion device
US-2020203064-A1 · Jun 25, 2020 · US
Method and circuit for detecting an arc fault
US-2020191852-A1 · Jun 18, 2020 · US
Inductor structures
US-2020185138-A1 · Jun 11, 2020 · US
Transformer and Switch-Mode Power Supply
US-2020168389-A1 · May 28, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H01F27/289?
- CPC H01F27/289 is the Cooperative Patent Classification code for “with auxiliary windings (for pancake coils H01F27/2871).”
- How many patents are filed under CPC H01F27/289 (with auxiliary windings (for pancake coils H01F27/2871))?
- Our database includes 135 publications tagged with this CPC code.
- Is patent activity under CPC H01F27/289 growing?
- Publication counts under this code: 14 in 2024 vs 7 in 2025 (latest complete years).