Portable fan, drive circuit, handheld fan, and neck fan
US-2026043411-A1 · Feb 12, 2026 · US
Ceramic bearing designs
Ceramic bearing designs · Cooperative Patent Classification (CPC)
Engines, pumps, lighting, heating, and mechanical systems.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | F04D29/0465 |
| Official title | {Ceramic bearing designs} |
| Display label | Ceramic bearing designs |
| Total patents | 40 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 5 |
| 2017 | 1 |
| 2018 | 4 |
| 2019 | 3 |
| 2020 | 4 |
| 2021 | 5 |
| 2022 | 1 |
| 2023 | 5 |
| 2024 | 4 |
| 2025 | 2 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Portable fan, drive circuit, handheld fan, and neck fan
US-12523231-B2 · Jan 13, 2026 · US
Conveying a fluid containing a (meth)acrylic monomer by means of a pump
US-12516675-B2 · Jan 6, 2026 · US
ESP motor radial bearing anti-rotation tab retention
US-12228171-B2 · Feb 18, 2025 · US
Portable fan, drive circuit, handheld fan, and neck fan
US-2025052250-A1 · Feb 13, 2025 · US
ESP Motor Radial Bearing Anti-Rotation Tab Retention
US-2024392830-A1 · Nov 28, 2024 · US
Pump bearing retainer
US-12110901-B2 · Oct 8, 2024 · US
Molten metal rotor with hardened blade tips
US-11933324-B2 · Mar 19, 2024 · US
Hydraulic machine
US-11892005-B2 · Feb 6, 2024 · US
Conveying a fluid containing a (meth)acrylic monomer by means of a pump
US-2023400016-A1 · Dec 14, 2023 · US
Metal compliance ring-mounted bearings in electric submersible pump motor
US-11788555-B1 · Oct 17, 2023 · US
Blood-immersed bearing system for a blood pump
US-11672968-B2 · Jun 13, 2023 · US
Hydraulic machine
US-2023080903-A1 · Mar 16, 2023 · US
Bearing assembly with catalyst-free ultra-strong polycrystalline diamond (PCD) material
US-11555505-B2 · Jan 17, 2023 · US
Labyrinth seal with angled fins
US-11293295-B2 · Apr 5, 2022 · US
Bearing assembly with catalyst-free ultra-strong polycrystalline diamond (pcd) material
US-2021381519-A1 · Dec 9, 2021 · US
Pump bearing retainer
US-2021222699-A1 · Jul 22, 2021 · US
Molten metal rotor with hardened blade tips
US-2021199115-A1 · Jul 1, 2021 · US
Labyrinth seal with angled fins
US-2021079802-A1 · Mar 18, 2021 · US
Molten metal rotor with hardened blade tips
US-10947980-B2 · Mar 16, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F04D29/0465?
- CPC F04D29/0465 is the Cooperative Patent Classification code for “Ceramic bearing designs.”
- How many patents are filed under CPC F04D29/0465 (Ceramic bearing designs)?
- Our database includes 40 publications tagged with this CPC code.
- Is patent activity under CPC F04D29/0465 growing?
- Publication counts under this code: 4 in 2024 vs 2 in 2025 (latest complete years).