Short impeller for a turbomachine
US-12352290-B2 · Jul 8, 2025 · US
Rotors consisting of a plurality of wheels
Rotors consisting of a plurality of wheels · 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 | F04D29/185 |
| Official title | {Rotors consisting of a plurality of wheels} |
| Display label | Rotors consisting of a plurality of wheels |
| Total patents | 45 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 1 |
| 2017 | 4 |
| 2018 | 4 |
| 2019 | 3 |
| 2020 | 3 |
| 2021 | 4 |
| 2022 | 6 |
| 2023 | 4 |
| 2024 | 7 |
| 2025 | 6 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Pump apparatus
US-12345265-B2 · Jul 1, 2025 · US
Liquid hydrogen pump impellor assembly
US-2025163928-A1 · May 22, 2025 · US
High volume axial flow electric submersible pump (ESP) pump stage
US-12305494-B2 · May 20, 2025 · US
Pump housing with an interior for accommodating a pump rotor
US-2025154962-A1 · May 15, 2025 · US
Pump apparatus
US-2025003412-A1 · Jan 2, 2025 · US
Short impeller for a turbomachine
US-2024410397-A1 · Dec 12, 2024 · US
Motor pump
US-2024369063-A1 · Nov 7, 2024 · US
Pump housing with an interior for accommodating a pump rotor
US-12123426-B2 · Oct 22, 2024 · US
High volume axial flow electric submersible pump (esp) pump stage
US-2024175339-A1 · May 30, 2024 · US
Short impeller for a turbomachine
US-11933323-B2 · Mar 19, 2024 · US
Water pump with coolant flow path
US-11905971-B2 · Feb 20, 2024 · US
Water pump with coolant flow path
US-2024018973-A1 · Jan 18, 2024 · US
Multifunctional pump assembly
US-11852147-B2 · Dec 26, 2023 · US
Pump housing with an interior for accommodating a pump rotor
US-2023374999-A1 · Nov 23, 2023 · US
Multifunctional pump assembly
US-2023313800-A1 · Oct 5, 2023 · US
Pump housing with an interior for accommodating a pump rotor
US-11703064-B2 · Jul 18, 2023 · US
Oil field pump
US-11480187-B2 · Oct 25, 2022 · US
Pump housing with an interior for accommodating a pump rotor
US-2022268290-A1 · Aug 25, 2022 · US
Impeller stack compression device and method
US-11280346-B2 · Mar 22, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F04D29/185?
- CPC F04D29/185 is the Cooperative Patent Classification code for “Rotors consisting of a plurality of wheels.”
- How many patents are filed under CPC F04D29/185 (Rotors consisting of a plurality of wheels)?
- Our database includes 45 publications tagged with this CPC code.
- Is patent activity under CPC F04D29/185 growing?
- Publication counts under this code: 7 in 2024 vs 6 in 2025 (latest complete years).