Inductors with magnetic core parts of different materials
US-11682515-B2 · Jun 20, 2023 · US
of inductances
of inductances · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H01F38/023 |
| Official title | {of inductances} |
| Display label | of inductances |
| Total patents | 81 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 7 |
| 2016 | 5 |
| 2017 | 9 |
| 2018 | 7 |
| 2019 | 4 |
| 2020 | 8 |
| 2021 | 13 |
| 2022 | 6 |
| 2023 | 5 |
| 2024 | 6 |
| 2025 | 8 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Coil device with predetermined gap arrangement
US-11508518-B2 · Nov 22, 2022 · US
Hybrid high current, surface mount swing inductor and fabrication methods
US-2022285073-A1 · Sep 8, 2022 · US
High current, multi-phase, surface mount inductor and methods of fabrication
US-2022254563-A1 · Aug 11, 2022 · US
Integrated inductor and power module
US-2022208425-A1 · Jun 30, 2022 · US
Fully integrated inversely weakly coupled power inductor
US-11309123-B2 · Apr 19, 2022 · US
Current transformer, protection device and electrical circuit breaker including such a transformer
US-11295885-B2 · Apr 5, 2022 · US
Segmented winding techniques for a coupled inductor circuit
US-11195655-B2 · Dec 7, 2021 · US
Wireless excitation system
US-2021358686-A1 · Nov 18, 2021 · US
Inductors with magnetic core parts of different materials
US-2021327628-A1 · Oct 21, 2021 · US
Coil device
US-2021257157-A1 · Aug 19, 2021 · US
Inductor with variable permeability core
US-2021257138-A1 · Aug 19, 2021 · US
Fully integrated inversely weakly coupled power inductor
US-2021210278-A1 · Jul 8, 2021 · US
Electrical component
US-11043330-B2 · Jun 22, 2021 · US
Current Dependent Inductivity
US-2021166867-A1 · Jun 3, 2021 · US
Variable coupled inductor
US-11017937-B2 · May 25, 2021 · US
Current controlling device
US-10971927-B2 · Apr 6, 2021 · US
Power inductor with variable width air gap
US-2021065958-A1 · Mar 4, 2021 · US
Augmented multi-stage boost converter
US-10917013-B2 · Feb 9, 2021 · US
Voltage agnostic power reactor
US-10903653-B2 · Jan 26, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H01F38/023?
- CPC H01F38/023 is the Cooperative Patent Classification code for “of inductances.”
- How many patents are filed under CPC H01F38/023 (of inductances)?
- Our database includes 81 publications tagged with this CPC code.
- Is patent activity under CPC H01F38/023 growing?
- Publication counts under this code: 6 in 2024 vs 8 in 2025 (latest complete years).