Magnetic secure transmission device and electronic device including the magnetic secure transmission device
US-2018365681-A1 · Dec 20, 2018 · US
non-metallic substances, e.g. ferrites
non-metallic substances, e.g. ferrites · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H01F1/34 |
| Official title | non-metallic substances, e.g. ferrites |
| Display label | non-metallic substances, e.g. ferrites |
| Total patents | 202 |
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 | 12 |
| 2017 | 22 |
| 2018 | 15 |
| 2019 | 33 |
| 2020 | 12 |
| 2021 | 23 |
| 2022 | 19 |
| 2023 | 13 |
| 2024 | 23 |
| 2025 | 14 |
| 2026 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Magnetic field shielding unit and multi-functional complex module including same
US-2018352688-A1 · Dec 6, 2018 · US
Inductor bridge and electronic device
US-10128040-B2 · Nov 13, 2018 · US
Magnetic sheet, module comprising same, and portable device comprising same
US-2018286546-A1 · Oct 4, 2018 · US
Ferrite composition and electronic component
US-10074476-B2 · Sep 11, 2018 · US
Coil component and board having the same
US-10056183-B2 · Aug 21, 2018 · US
Structure of wireless power transmission system
US-2018219422-A1 · Aug 2, 2018 · US
Ferrite composition and electronic component
US-10020791-B2 · Jul 10, 2018 · US
R-T-B based permanent magnet and rotating machine
US-10020102-B2 · Jul 10, 2018 · US
Ferrite composite sleeve systems and methods for coaxial applications
US-10005217-B2 · Jun 26, 2018 · US
Coupled inductors for low electromagnetic interference
US-2018053596-A1 · Feb 22, 2018 · US
Electronic component
US-2018033546-A1 · Feb 1, 2018 · US
Multilayer ceramic electronic component
US-2018033556-A1 · Feb 1, 2018 · US
Multi-Series Continuous-Flow Magnetoelectric Coupling Processing System and Applications Thereof
US-2018033548-A1 · Feb 1, 2018 · US
Chip inductor and method of manufacturing the same
US-2017345549-A1 · Nov 30, 2017 · US
Electromagnetic wave absorbing sheet and method of manufacturing the same and electronic device using the same
US-9832917-B2 · Nov 28, 2017 · US
Iron nitride permanent magnet and technique for forming iron nitride permanent magnet
US-2017330660-A1 · Nov 16, 2017 · US
Composite sheet for shielding magnetic field and electromagnetic wave, and antenna module comprising same
US-9812774-B2 · Nov 7, 2017 · US
Additive manufacturing systems and methods for magnetic materials
US-2017312967-A1 · Nov 2, 2017 · US
Power supply module having two or more output voltages
US-2017287615-A1 · Oct 5, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H01F1/34?
- CPC H01F1/34 is the Cooperative Patent Classification code for “non-metallic substances, e.g. ferrites.”
- How many patents are filed under CPC H01F1/34 (non-metallic substances, e.g. ferrites)?
- Our database includes 202 publications tagged with this CPC code.
- Is patent activity under CPC H01F1/34 growing?
- Publication counts under this code: 23 in 2024 vs 14 in 2025 (latest complete years).