Controllable coolant pump with electric auxiliary pump
US-2026022653-A1 · Jan 22, 2026 · US
in which fluid from the circuit is constantly supplied to the fluid motor
in which fluid from the circuit is constantly supplied to the fluid motor · 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 | F16K31/36 |
| Official title | in which fluid from the circuit is constantly supplied to the fluid motor |
| Display label | in which fluid from the circuit is constantly supplied to the fluid motor |
| Total patents | 31 |
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 |
| 2018 | 5 |
| 2019 | 2 |
| 2020 | 5 |
| 2021 | 3 |
| 2022 | 2 |
| 2023 | 4 |
| 2024 | 4 |
| 2025 | 3 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Fluid density valve, method, and system
US-12410680-B2 · Sep 9, 2025 · US
Electromagnetic valve manifold
US-12215721-B2 · Feb 4, 2025 · US
Fluid density valve, method, and system
US-2025020042-A1 · Jan 16, 2025 · US
Hydrogen supply combination valve having flow regulation and pressure stabilization functions
US-12169028-B2 · Dec 17, 2024 · US
Hydrogen supply combination valve having flow regulation and pressure stabilization functions
US-2024295273-A1 · Sep 5, 2024 · US
Fluid switching valve with pressure difference subjectable valve closure bodies
US-12023691-B2 · Jul 2, 2024 · US
Reversing Valve
US-2024125403-A1 · Apr 18, 2024 · US
Fluid level sensing assembly for motorised valve
US-11815190-B2 · Nov 14, 2023 · US
Fluid switching valve with pressure difference subjectable valve closure bodies
US-2023241631-A1 · Aug 3, 2023 · US
Electromagnetic valve manifold
US-2023235758-A1 · Jul 27, 2023 · US
Air turbine driven rotary valve for vitrectomy probe
US-2023058540-A1 · Feb 23, 2023 · US
Fluid level sensing assembly for motorised valve
US-2022196171-A1 · Jun 23, 2022 · US
Control apparatus for linear solenoid
US-11237575-B2 · Feb 1, 2022 · US
Hydraulic control valve
US-11143287-B2 · Oct 12, 2021 · US
Cooling system valve
US-11053837-B2 · Jul 6, 2021 · US
Nozzle with locking nut
US-10927859-B2 · Feb 23, 2021 · US
Throttling device and refrigeration cycle
US-10837683-B2 · Nov 17, 2020 · US
Hydraulic control valve
US-2020309247-A1 · Oct 1, 2020 · US
Pneumatic servovalve assembly
US-10711811-B2 · Jul 14, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F16K31/36?
- CPC F16K31/36 is the Cooperative Patent Classification code for “in which fluid from the circuit is constantly supplied to the fluid motor.”
- How many patents are filed under CPC F16K31/36 (in which fluid from the circuit is constantly supplied to the fluid motor)?
- Our database includes 31 publications tagged with this CPC code.
- Is patent activity under CPC F16K31/36 growing?
- Publication counts under this code: 4 in 2024 vs 3 in 2025 (latest complete years).