Air duct with emi suppression
US-2021315136-A1 · Oct 7, 2021 · US
using non-directional dissipative particles, e.g. ferrite powders (H01Q17/005 takes precedence; flake-like H01Q17/002)
using non-directional dissipative particles, e.g. ferrite powders (H01Q17/005 takes precedence; flake-like H01Q17/002) · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H01Q17/004 |
| Official title | {using non-directional dissipative particles, e.g. ferrite powders (H01Q17/005 takes precedence; flake-like H01Q17/002)} |
| Display label | using non-directional dissipative particles, e.g. ferrite powders (H01Q17/005 takes precedence; flake-like H01Q17/002) |
| Total patents | 133 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 6 |
| 2016 | 12 |
| 2017 | 12 |
| 2018 | 7 |
| 2019 | 7 |
| 2020 | 9 |
| 2021 | 17 |
| 2022 | 18 |
| 2023 | 14 |
| 2024 | 11 |
| 2025 | 18 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Electronic module for use in an automotive vehicle
US-11129312-B2 · Sep 21, 2021 · US
Method For Producing A Layer Of A Device For The Absorption Of Electromagnetic Radiation
US-2021280982-A1 · Sep 9, 2021 · US
Radio wave absorbing member, radio wave absorbing structure, and inspection apparatus
US-2021249780-A1 · Aug 12, 2021 · US
Capacitive stealth composite structure
US-2021119343-A1 · Apr 22, 2021 · US
Radar standing wave dampnening components and systems
US-2021050673-A1 · Feb 18, 2021 · US
Gradient permittivity film
US-2021028538-A1 · Jan 28, 2021 · US
High-frequency module
US-10732367-B2 · Aug 4, 2020 · US
Printed broadband absorber
US-10727582-B1 · Jul 28, 2020 · US
Electromagnetic wave absorbing composition, and electromagnetic wave absorption body
US-2020227833-A1 · Jul 16, 2020 · US
Display module including antenna
US-10686246-B2 · Jun 16, 2020 · US
Modified ni-zn ferrites for radiofrequency applications
US-2020127367-A1 · Apr 23, 2020 · US
Spectral conversion element for electromagnetic radiation
US-10612979-B2 · Apr 7, 2020 · US
Ferrite thick films and chemical solution-based methods of preparation thereof
US-10577253-B2 · Mar 3, 2020 · US
Electromagnetic field confinement
US-10573445-B2 · Feb 25, 2020 · US
Electromagnetic-wave absorbing sheet
US-2020008328-A1 · Jan 2, 2020 · US
Modified Ni—Zn ferrites for radiofrequency applications
US-10483619-B2 · Nov 19, 2019 · US
Enhanced magnetic loss y-phase hexagonal ferrite for magnetodielectric antenna applications
US-10461436-B2 · Oct 29, 2019 · US
Isolation barrier
US-10454180-B2 · Oct 22, 2019 · US
High-frequency module
US-2019219781-A1 · Jul 18, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H01Q17/004?
- CPC H01Q17/004 is the Cooperative Patent Classification code for “using non-directional dissipative particles, e.g. ferrite powders (H01Q17/005 takes precedence; flake-like H01Q17/002).”
- How many patents are filed under CPC H01Q17/004 (using non-directional dissipative particles, e.g. ferrite powders (H01Q17/005 takes precedence; flake-like H01Q17/002))?
- Our database includes 133 publications tagged with this CPC code.
- Is patent activity under CPC H01Q17/004 growing?
- Publication counts under this code: 11 in 2024 vs 18 in 2025 (latest complete years).