Electromagnetic rotating device and vacuum pump equipped with electromagnetic rotating device
US-10876540-B2 · Dec 29, 2020 · US
comprising magnetic bearings
comprising magnetic bearings · 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 | F04D19/048 |
| Official title | {comprising magnetic bearings} |
| Display label | comprising magnetic bearings |
| Total patents | 153 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 5 |
| 2016 | 5 |
| 2017 | 11 |
| 2018 | 13 |
| 2019 | 13 |
| 2020 | 18 |
| 2021 | 18 |
| 2022 | 19 |
| 2023 | 17 |
| 2024 | 23 |
| 2025 | 10 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Magnetic bearing control apparatus and vacuum pump
US-2020386234-A1 · Dec 10, 2020 · US
Vacuum pump
US-10837449-B2 · Nov 17, 2020 · US
A drag pump and a set of vacuum pumps including a drag pump
US-2020271118-A1 · Aug 27, 2020 · US
Vacuum pump
US-2020208647-A1 · Jul 2, 2020 · US
Vacuum pump lubricant supply systems
US-10697461-B2 · Jun 30, 2020 · US
Magnetic bearing device and vacuum pump
US-10683893-B2 · Jun 16, 2020 · US
Vacuum valve, vacuum pump, and vacuum pumping system
US-10683867-B2 · Jun 16, 2020 · US
Vacuum pump, and magnetic bearing portion and shaft provided in vacuum pump
US-2020158117-A1 · May 21, 2020 · US
Pump monitoring device, vacuum processing device, and vacuum pump
US-2020141415-A1 · May 7, 2020 · US
Magnetic levitation vacuum pump
US-10634147-B2 · Apr 28, 2020 · US
Magnetic bearing control device and vacuum pump
US-10619669-B2 · Apr 14, 2020 · US
Variable inlet conductance vacuum pump, vacuum pump arrangement and method
US-2020011335-A1 · Jan 9, 2020 · US
Vacuum pump and diagnosis system
US-2019383296-A1 · Dec 19, 2019 · US
Pump bearing holders
US-2019368499-A1 · Dec 5, 2019 · US
Vacuum valve and vacuum pump
US-10400775-B2 · Sep 3, 2019 · US
Vacuum pump
US-10404118-B2 · Sep 3, 2019 · US
Magnetic levitation control device and vacuum pump
US-2019249677-A1 · Aug 15, 2019 · US
Vacuum pump, and waterproof structure and control apparatus applied to vacuum pump
US-2019242387-A1 · Aug 8, 2019 · US
Elongated permanent ring management with a plurality of axially directed magnetized zones and magnetic bearing with such a ring magnet
US-10359047-B2 · Jul 23, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F04D19/048?
- CPC F04D19/048 is the Cooperative Patent Classification code for “comprising magnetic bearings.”
- How many patents are filed under CPC F04D19/048 (comprising magnetic bearings)?
- Our database includes 153 publications tagged with this CPC code.
- Is patent activity under CPC F04D19/048 growing?
- Publication counts under this code: 23 in 2024 vs 10 in 2025 (latest complete years).