Air-filled kaplan runner
US-2026049590-A1 · Feb 19, 2026 · US
Injecting air or other fluid (F03D80/40, F03B11/04, F03B15/00 take precedence)
Injecting air or other fluid (F03D80/40, F03B11/04, F03B15/00 take precedence) · 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 | F03B11/002 |
| Official title | {Injecting air or other fluid (F03D80/40, F03B11/04, F03B15/00 take precedence)} |
| Display label | Injecting air or other fluid (F03D80/40, F03B11/04, F03B15/00 take precedence) |
| Total patents | 30 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 3 |
| 2017 | 1 |
| 2018 | 2 |
| 2019 | 3 |
| 2020 | 4 |
| 2021 | 3 |
| 2022 | 4 |
| 2023 | 3 |
| 2024 | 1 |
| 2025 | 3 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method of refurbishing an energy conversion facility and refurbished energy conversion facility
US-12497940-B2 · Dec 16, 2025 · US
Power generation system
US-2025377164-A1 · Dec 11, 2025 · US
Method of refurbishing an energy conversion facility and refurbished energy conversion facility
US-2025012248-A1 · Jan 9, 2025 · US
Hydroelectric turbine installation and operation method for enhancing the level of dissolved oxygen
US-2024159209-A1 · May 16, 2024 · US
Pre-formed plug with inter-blade profiles for hydraulic turbines
US-11692445-B2 · Jul 4, 2023 · US
Pre-formed plug with inter-blade profiles for hydraulic turbines
US-2023030140-A1 · Feb 2, 2023 · US
Wave power utilization device and control method of wave power utilization device
US-11560871-B2 · Jan 24, 2023 · US
Wicket gate for a hydraulic turbine or pump
US-11530678-B2 · Dec 20, 2022 · US
Pre-formed plug with inter-blade profiles for hydraulic turbines
US-11454122-B2 · Sep 27, 2022 · US
Runner for a hydraulic turbine or pump and method of manufacturing
US-11359595-B2 · Jun 14, 2022 · US
Wave power utilization device and control method of wave power utilization device
US-2022120254-A1 · Apr 21, 2022 · US
Wicket gate for a hydraulic turbine or pump
US-2021088022-A1 · Mar 25, 2021 · US
Hydraulic installation and method for operating the same
US-10907608-B2 · Feb 2, 2021 · US
Runner for a hydraulic turbine or pump and method of manufacturing
US-2021017948-A1 · Jan 21, 2021 · US
Hydraulic machine comprising a radial flow runner
US-2020362811-A1 · Nov 19, 2020 · US
Inter-Blade Profiles for Hydraulic Turbines with Removable Cover Part
US-2020040744-A1 · Feb 6, 2020 · US
Pre-Formed Plug with Inter-Blade Profiles for Hydraulic Turbines
US-2020040740-A1 · Feb 6, 2020 · US
Runner for a hydraulic turbine or pump and method of operating such a runner
US-10544774-B2 · Jan 28, 2020 · US
Runner for a hydraulic turbine or pump
US-2019345827-A1 · Nov 14, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F03B11/002?
- CPC F03B11/002 is the Cooperative Patent Classification code for “Injecting air or other fluid (F03D80/40, F03B11/04, F03B15/00 take precedence).”
- How many patents are filed under CPC F03B11/002 (Injecting air or other fluid (F03D80/40, F03B11/04, F03B15/00 take precedence))?
- Our database includes 30 publications tagged with this CPC code.
- Is patent activity under CPC F03B11/002 growing?
- Publication counts under this code: 1 in 2024 vs 3 in 2025 (latest complete years).