Compressor and Multi Stack Fuel Cell
US-2026081193-A1 · Mar 19, 2026 · US
Other rotary non-positive-displacement pumps (pumping installations or systems F04D25/00)
Other rotary non-positive-displacement pumps (pumping installations or systems F04D25/00) · 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 | F04D23/00 |
| Official title | Other rotary non-positive-displacement pumps (pumping installations or systems F04D25/00) |
| Display label | Other rotary non-positive-displacement pumps (pumping installations or systems F04D25/00) |
| Total patents | 28 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2017 | 1 |
| 2018 | 2 |
| 2019 | 3 |
| 2020 | 7 |
| 2021 | 1 |
| 2022 | 5 |
| 2023 | 1 |
| 2024 | 3 |
| 2025 | 2 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Air moving device
US-2026002542-A1 · Jan 1, 2026 · US
Regenerative blower
US-12331749-B2 · Jun 17, 2025 · US
Regenerative blower
US-2025154956-A1 · May 15, 2025 · US
Blower
US-12158161-B2 · Dec 3, 2024 · US
Laser chamber and electronic device manufacturing method
US-11947263-B2 · Apr 2, 2024 · US
Blower
US-2024077084-A1 · Mar 7, 2024 · US
Vaneless supersonic diffuser for compressor
US-11592034-B2 · Feb 28, 2023 · US
Regenerative blower
US-2022282733-A1 · Sep 8, 2022 · US
Regenerative blower
US-11371515-B2 · Jun 28, 2022 · US
Side-channel compressor for a fuel cell system for conveying and/or compressing a gaseous medium
US-11335923-B2 · May 17, 2022 · US
Laser chamber and electronic device manufacturing method
US-2022091515-A1 · Mar 24, 2022 · US
Vaneless supersonic diffuser for compressor
US-2022049716-A1 · Feb 17, 2022 · US
Drag pump and a set of vacuum pumps including a drag pump
US-11143191-B2 · Oct 12, 2021 · US
Side-channel compressor for a fuel cell system for conveying and/or compressing a gaseous medium
US-2020343566-A1 · Oct 29, 2020 · US
Regenerative blower
US-2020309137-A1 · Oct 1, 2020 · US
A drag pump and a set of vacuum pumps including a drag pump
US-2020271118-A1 · Aug 27, 2020 · US
Heat-dissipation fan with cylindrical fan blades
US-10598187-B2 · Mar 24, 2020 · US
Mixed flow fan
US-10570906-B2 · Feb 25, 2020 · US
Turbine impeller and variable geometry turbine
US-10563515-B2 · Feb 18, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F04D23/00?
- CPC F04D23/00 is the Cooperative Patent Classification code for “Other rotary non-positive-displacement pumps (pumping installations or systems F04D25/00).”
- How many patents are filed under CPC F04D23/00 (Other rotary non-positive-displacement pumps (pumping installations or systems F04D25/00))?
- Our database includes 28 publications tagged with this CPC code.
- Is patent activity under CPC F04D23/00 growing?
- Publication counts under this code: 3 in 2024 vs 2 in 2025 (latest complete years).