Method for determining a leak rate in a displacement pump
US-2025382957-A1 · Dec 18, 2025 · US
for rotating distribution members
for rotating distribution 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 | F04B7/0046 |
| Official title | {for rotating distribution members} |
| Display label | for rotating distribution members |
| Total patents | 44 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 1 |
| 2017 | 1 |
| 2018 | 4 |
| 2019 | 4 |
| 2020 | 8 |
| 2021 | 3 |
| 2022 | 9 |
| 2023 | 5 |
| 2024 | 4 |
| 2025 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Disposable medical flow-regulating device and system
US-12415023-B2 · Sep 16, 2025 · US
Rotational metering pump for medication patch
US-12246162-B2 · Mar 11, 2025 · US
Rotational metering gasket pump
US-12241459-B2 · Mar 4, 2025 · US
Mode selection valve for rat re-stow pump
US-2024288010-A1 · Aug 29, 2024 · US
Rotational metering pump for medication patch
US-2024058528-A1 · Feb 22, 2024 · US
Plunger pump, liquid feeding device, and liquid chromatography device
US-11898555-B2 · Feb 13, 2024 · US
Rotational metering pump for insulin patch
US-11857756-B2 · Jan 2, 2024 · US
Rotational metering gasket pump
US-2023366386-A1 · Nov 16, 2023 · US
Rotational metering pump for insulin patch
US-2023310737-A9 · Oct 5, 2023 · US
Rotational metering pump with cam-driven valving shuttle interlock
US-2023313787-A1 · Oct 5, 2023 · US
Controlling the flow of fluid to high pressure pumps
US-11702916-B2 · Jul 18, 2023 · US
Rotational metering pump for insulin patch
US-11696983-B2 · Jul 11, 2023 · US
Cartridge assembly
US-2022387998-A1 · Dec 8, 2022 · US
Cartridge assembly
US-11458469-B2 · Oct 4, 2022 · US
Liquid delivery device and liquid chromatograph equipped with liquid delivery device
US-11413555-B2 · Aug 16, 2022 · US
Controlling the flow of fluid to high pressure pumps
US-2022195856-A1 · Jun 23, 2022 · US
Disposable Medical Flow-Regulating Device and System
US-2022176027-A1 · Jun 9, 2022 · US
Rotational metering pump for insulin patch
US-2022160958-A1 · May 26, 2022 · US
Precise control of suction damping device in a variable displacement compressor
US-11319939-B2 · May 3, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F04B7/0046?
- CPC F04B7/0046 is the Cooperative Patent Classification code for “for rotating distribution members.”
- How many patents are filed under CPC F04B7/0046 (for rotating distribution members)?
- Our database includes 44 publications tagged with this CPC code.
- Is patent activity under CPC F04B7/0046 growing?
- Publication counts under this code: 4 in 2024 vs 4 in 2025 (latest complete years).