Hybrid driven double pump
US-2020392890-A1 · Dec 17, 2020 · US
throttling valves or valves varying the pump inlet opening or the outlet opening
throttling valves or valves varying the pump inlet opening or the outlet opening · 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 | F04D15/0022 |
| Official title | {throttling valves or valves varying the pump inlet opening or the outlet opening} |
| Display label | throttling valves or valves varying the pump inlet opening or the outlet opening |
| Total patents | 133 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 12 |
| 2016 | 11 |
| 2017 | 7 |
| 2018 | 9 |
| 2019 | 17 |
| 2020 | 24 |
| 2021 | 13 |
| 2022 | 12 |
| 2023 | 10 |
| 2024 | 10 |
| 2025 | 7 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Motor vehicle
US-10865695-B2 · Dec 15, 2020 · US
Hydraulic system
US-10677249-B2 · Jun 9, 2020 · US
Rotary pump with axially displaceable, closeable rotor
US-10539142-B2 · Jan 21, 2020 · US
Electric coolant pump
US-2019345868-A1 · Nov 14, 2019 · US
Motor vehicle
US-2019345867-A1 · Nov 14, 2019 · US
Pump with variable flow diverter that forms volute
US-2019331131-A1 · Oct 31, 2019 · US
Coolant pump for vehicle, cooling system provided with the same and control method for the same
US-2019323413-A1 · Oct 24, 2019 · US
Gas estimation device and vacuum pumping device
US-10443600-B2 · Oct 15, 2019 · US
Hydraulic system
US-10443860-B2 · Oct 15, 2019 · US
Electric coolant pump
US-2019277183-A1 · Sep 12, 2019 · US
Turbocharger compressor having adjustable trim mechanism including vortex reducers
US-2019264710-A1 · Aug 29, 2019 · US
Circulation pump assembly for a heating and/or cooling system
US-2019249881-A1 · Aug 15, 2019 · US
Valve trim apparatus for use with control valves
US-2019211934-A1 · Jul 11, 2019 · US
Water pump for vehicle
US-2019186339-A1 · Jun 20, 2019 · US
Pump
US-10316847-B2 · Jun 11, 2019 · US
Circulation pump assembly for a heating and/or cooling system
US-10317094-B2 · Jun 11, 2019 · US
Bilge pump arrangement having back flow preventer
US-10302090-B2 · May 28, 2019 · US
Gas estimation device and vacuum pumping device
US-2019107110-A1 · Apr 11, 2019 · US
Valve assembly integrated into a coolant pump and method for controlling the same
US-10227987-B2 · Mar 12, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F04D15/0022?
- CPC F04D15/0022 is the Cooperative Patent Classification code for “throttling valves or valves varying the pump inlet opening or the outlet opening.”
- How many patents are filed under CPC F04D15/0022 (throttling valves or valves varying the pump inlet opening or the outlet opening)?
- Our database includes 133 publications tagged with this CPC code.
- Is patent activity under CPC F04D15/0022 growing?
- Publication counts under this code: 10 in 2024 vs 7 in 2025 (latest complete years).