High-Pressure Fuel Pump
US-2021372353-A1 · Dec 2, 2021 · US
using accumulators
using accumulators · 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 | F04B11/0008 |
| Official title | {using accumulators} |
| Display label | using accumulators |
| Total patents | 101 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 4 |
| 2016 | 7 |
| 2017 | 8 |
| 2018 | 12 |
| 2019 | 8 |
| 2020 | 15 |
| 2021 | 12 |
| 2022 | 9 |
| 2023 | 11 |
| 2024 | 5 |
| 2025 | 9 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Piston pump for brake system
US-11181102-B2 · Nov 23, 2021 · US
Active dampening gradient proportioning valve
US-2021156829-A1 · May 27, 2021 · US
Fluid damper
US-10969049-B1 · Apr 6, 2021 · US
Bootstrap hydraulic reservoir
US-10920795-B2 · Feb 16, 2021 · US
Method for operating a device for the dosed supply of a liquid
US-10883490-B2 · Jan 5, 2021 · US
Buffered pump system
US-2020406277-A1 · Dec 31, 2020 · US
High-pressure fuel pump
US-10859048-B2 · Dec 8, 2020 · US
Pump
US-2020318627-A1 · Oct 8, 2020 · US
Fluid apparatus and buffer tank for use therein
US-2020318771-A1 · Oct 8, 2020 · US
Active surge chamber
US-10788846-B2 · Sep 29, 2020 · US
Diaphragm damper device coiled wave spring and damper system
US-10753331-B2 · Aug 25, 2020 · US
Using Silicone O-Rings in Dual Action Irrigation Pump
US-2020208627-A1 · Jul 2, 2020 · US
Using Balloon as Damper for Port of a Reciprocating Pump
US-2020206401-A1 · Jul 2, 2020 · US
Dampening element for fluid management system
US-2020200313-A1 · Jun 25, 2020 · US
Manifold and methods of manufacturing same
US-10670176-B2 · Jun 2, 2020 · US
Bootstrap hydraulic reservoir
US-2020166055-A1 · May 28, 2020 · US
Diaphragm cell for damping pressure pulsations in a low-pressure region of a piston pump
US-10662931-B2 · May 26, 2020 · US
Systems and methods for managing noise in compact high speed and high force hydraulic actuators
US-2020088214-A1 · Mar 19, 2020 · US
Automatic system profiling for a well system
US-2020033899-A1 · Jan 30, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F04B11/0008?
- CPC F04B11/0008 is the Cooperative Patent Classification code for “using accumulators.”
- How many patents are filed under CPC F04B11/0008 (using accumulators)?
- Our database includes 101 publications tagged with this CPC code.
- Is patent activity under CPC F04B11/0008 growing?
- Publication counts under this code: 5 in 2024 vs 9 in 2025 (latest complete years).