Peristaltic pump
US-12420078-B2 · Sep 23, 2025 · US
Piston machines or pumps characterised by the driving or driven means to or from their working members
Piston machines or pumps characterised by the driving or driven means to or from their working members · 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 | F04B9/00 |
| Official title | Piston machines or pumps characterised by the driving or driven means to or from their working members |
| Display label | Piston machines or pumps characterised by the driving or driven means to or from their working members |
| Total patents | 42 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2017 | 3 |
| 2018 | 4 |
| 2019 | 5 |
| 2020 | 5 |
| 2021 | 6 |
| 2022 | 4 |
| 2023 | 5 |
| 2024 | 3 |
| 2025 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Actuator for a reciprocating pump
US-12421947-B2 · Sep 23, 2025 · US
Liquid discharge head and liquid discharge apparatus
US-2025178356-A1 · Jun 5, 2025 · US
Hydraulic Fracturing System for Driving a Plunger Pump with a Turbine Engine
US-2025027396-A1 · Jan 23, 2025 · US
Peristaltic pump
US-2024408375-A1 · Dec 12, 2024 · US
Electromechanical brake pressure generator for a hydraulic braking system
US-12098716-B2 · Sep 24, 2024 · US
Heat dissipation apparatus and electronic device
US-2024292566-A1 · Aug 29, 2024 · US
Fluid supply device
US-2023396122-A1 · Dec 7, 2023 · US
System for conveying and dispensing heated food material
US-11730174-B2 · Aug 22, 2023 · US
Capacitance sensing for component positioning detection
US-2023166032-A1 · Jun 1, 2023 · US
Pump
US-2023089643-A1 · Mar 23, 2023 · US
Piezoelectric element driving circuit and fluid control apparatus
US-11605773-B2 · Mar 14, 2023 · US
Liquid material ejection device
US-11536259-B2 · Dec 27, 2022 · US
Electromagnetic pump
US-11408405-B2 · Aug 9, 2022 · US
Piston pump
US-11352995-B2 · Jun 7, 2022 · US
Electromechanical brake pressure generator for a hydraulic braking system
US-2022144239-A1 · May 12, 2022 · US
Drive apparatus of electric motor and electric pump apparatus
US-11128243-B2 · Sep 21, 2021 · US
Actuator for a reciprocating pump
US-2021190053-A1 · Jun 24, 2021 · US
Piston pump
US-2021148319-A1 · May 20, 2021 · US
Device configured to intermittently supply a liquid plastic component
US-10960575-B2 · Mar 30, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F04B9/00?
- CPC F04B9/00 is the Cooperative Patent Classification code for “Piston machines or pumps characterised by the driving or driven means to or from their working members.”
- How many patents are filed under CPC F04B9/00 (Piston machines or pumps characterised by the driving or driven means to or from their working members)?
- Our database includes 42 publications tagged with this CPC code.
- Is patent activity under CPC F04B9/00 growing?
- Publication counts under this code: 3 in 2024 vs 4 in 2025 (latest complete years).