Increased resonant frequency alkali-doped Y-phase hexagonal ferrites
US-11742118-B2 · Aug 29, 2023 · US
Other ferrites containing nickel, copper or cobalt
Other ferrites containing nickel, copper or cobalt · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C04B35/2666 |
| Official title | {Other ferrites containing nickel, copper or cobalt} |
| Display label | Other ferrites containing nickel, copper or cobalt |
| Total patents | 73 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 8 |
| 2017 | 4 |
| 2018 | 12 |
| 2019 | 8 |
| 2020 | 7 |
| 2021 | 9 |
| 2022 | 8 |
| 2023 | 6 |
| 2024 | 1 |
| 2025 | 8 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for manufacturing sintered body, structure, and composite structure
US-11607728-B2 · Mar 21, 2023 · US
Magnetodielectric Y-phase strontium hexagonal ferrite materials formed by sodium substitution
US-11551837-B2 · Jan 10, 2023 · US
Ferrite ceramic composition and coil component
US-2022324757-A1 · Oct 13, 2022 · US
Ferrite sintered magnet, ferrite particles, bonded magnet, and rotating electrical machine
US-2022319746-A1 · Oct 6, 2022 · US
Ferrite sintered magnet
US-11440848-B2 · Sep 13, 2022 · US
Ferrite sintered magnet, ferrite particles, bonded magnet, and rotating electrical machine
US-2022157498-A1 · May 19, 2022 · US
Ferrite particles, electrophotographic developer carrier core material, electrophotographic developer carrier, and electrophotographic developer
US-2022155701-A1 · May 19, 2022 · US
Ferrite particles, electrophotographic developer carrier core material, electrophotographic developer carrier, and electrophotographic developer
US-2022155702-A1 · May 19, 2022 · US
Ferrite composition and multilayer electronic component
US-11282622-B2 · Mar 22, 2022 · US
Increased resonant frequency potassium-doped hexagonal ferrite
US-2022013263-A1 · Jan 13, 2022 · US
Magnetic materials with ultrahigh resistivity intergrain nanoparticles
US-11211187-B2 · Dec 28, 2021 · US
Magnetodielectric y-phase strontium hexagonal ferrite materials formed by sodium substitution
US-2021366634-A1 · Nov 25, 2021 · US
Increased resonant frequency alkali-doped y-phase hexagonal ferrites
US-2021343455-A1 · Nov 4, 2021 · US
Increased resonant frequency potassium-doped hexagonal ferrite
US-11164689-B2 · Nov 2, 2021 · US
Incorporation of oxides into ferrite material for improved radio radiofrequency properties
US-2021304928-A1 · Sep 30, 2021 · US
Three-dimensional (3D) printing
US-11104029-B2 · Aug 31, 2021 · US
Increased resonant frequency alkali-doped Y-phase hexagonal ferrites
US-11004581-B2 · May 11, 2021 · US
Magnetodielectric y-phase strontium hexagonal ferrite materials formed by sodium substitution
US-10984928-B2 · Apr 20, 2021 · US
Incorporation of oxides into ferrite material for improved radio radiofrequency properties
US-10971288-B2 · Apr 6, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C04B35/2666?
- CPC C04B35/2666 is the Cooperative Patent Classification code for “Other ferrites containing nickel, copper or cobalt.”
- How many patents are filed under CPC C04B35/2666 (Other ferrites containing nickel, copper or cobalt)?
- Our database includes 73 publications tagged with this CPC code.
- Is patent activity under CPC C04B35/2666 growing?
- Publication counts under this code: 1 in 2024 vs 8 in 2025 (latest complete years).