Centrifugal reservoir pump used for processing a hydrogen stream in an aircraft
US-12480495-B2 · Nov 25, 2025 · US
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Pumps with scoops or like paring members protruding in the fluid circulating in a bowl
Pumps with scoops or like paring members protruding in the fluid circulating in a bowl · 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 | F04D1/12 |
| Official title | Pumps with scoops or like paring members protruding in the fluid circulating in a bowl |
| Display label | Pumps with scoops or like paring members protruding in the fluid circulating in a bowl |
| Total patents | 21 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 2 |
| 2017 | 2 |
| 2018 | 1 |
| 2019 | 6 |
| 2020 | 3 |
| 2022 | 1 |
| 2023 | 2 |
| 2024 | 1 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Gas turbine water injection for emissions reduction
US-11952940-B2 · Apr 9, 2024 · US
Centrifugal reservoir pump used for processing a hydrogen stream in an aircraft
US-2023271112-A1 · Aug 31, 2023 · US
Scavenging centrifugal baffle pump
US-11542948-B2 · Jan 3, 2023 · US
Gas turbine water injection for emissions reduction
US-2022213837-A1 · Jul 7, 2022 · US
Turbomachine
US-10837454-B2 · Nov 17, 2020 · US
Planetary gear device with an oil supply appliance, gas turbine engine with a planetary gear device and method for manufacturing a vane pump
US-10823174-B2 · Nov 3, 2020 · US
Scavenging centrifugal baffle pump
US-2020340475-A1 · Oct 29, 2020 · US
Fluid Transfer Using Devices with Rotatable Housings
US-2019368488-A1 · Dec 5, 2019 · US
Planetary gear device with an oil supply appliance, gas turbine engine with a planetary gear device and method for manufacturing a vane pump
US-2019301466-A1 · Oct 3, 2019 · US
Turbomachine
US-2019264691-A1 · Aug 29, 2019 · US
Fluid transfer using devices with rotatable housings
US-10385851-B2 · Aug 20, 2019 · US
Centrifugal pump
US-10274093-B2 · Apr 30, 2019 · US
Coupling and a method of using the same
US-10234017-B2 · Mar 19, 2019 · US
Method and system for centrifugal pump
US-10060290-B2 · Aug 28, 2018 · US
Low profile pump with the ability to be mounted in various configurations
US-2017248143-A1 · Aug 31, 2017 · US
Method and system for centrifugal pump
US-2017191378-A1 · Jul 6, 2017 · US
Fluid Transfer Using Devices with Rotatable Housings
US-2016153453-A1 · Jun 2, 2016 · US
Coupling and a method of using the same
US-2016102751-A1 · Apr 14, 2016 · US
Centrifugal pump
US-2015337973-A1 · Nov 26, 2015 · US