Rotational metering pump for medication patch
US-12246162-B2 · Mar 11, 2025 · US
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cylinders rotating around their own axis
cylinders rotating around their own axis · 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 | F04B19/025 |
| Official title | {cylinders rotating around their own axis} |
| Display label | cylinders rotating around their own axis |
| Total patents | 24 |
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 | 4 |
| 2017 | 1 |
| 2018 | 4 |
| 2019 | 1 |
| 2020 | 3 |
| 2021 | 1 |
| 2022 | 1 |
| 2023 | 3 |
| 2024 | 3 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Rotational metering gasket pump
US-12241459-B2 · Mar 4, 2025 · US
Pump body assembly and fluid machine
US-12158139-B2 · Dec 3, 2024 · US
Rotational metering pump for medication patch
US-2024058528-A1 · Feb 22, 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
Pump body assembly and fluid machine
US-2023160376-A1 · May 25, 2023 · US
Rotational metering pump for insulin patch
US-2022160958-A1 · May 26, 2022 · US
Rotational metering pump for insulin patch
US-11191892-B2 · Dec 7, 2021 · US
Rotational metering pump for insulin patch
US-2020222626-A1 · Jul 16, 2020 · US
Rotational metering pump for insulin patch
US-10675404-B2 · Jun 9, 2020 · US
Fluid machinery, heat exchange equipment, and operating method for fluid machinery
US-10626858-B2 · Apr 21, 2020 · US
Rotational metering pump for insulin patch
US-2019125962-A1 · May 2, 2019 · US
Variable displacement fuel pump background
US-2018340531-A1 · Nov 29, 2018 · US
Rotational metering pump for insulin patch
US-10132308-B2 · Nov 20, 2018 · US
Fluid machinery, heat exchange equipment, and operating method for fluid machinery
US-2018230981-A1 · Aug 16, 2018 · US
Occlusion detection techniques for a fluid infusion device having a rotary pump mechanism and an optical sensor
US-9879668-B2 · Jan 30, 2018 · US
Rotational metering pump for insulin patch
US-2017184091-A1 · Jun 29, 2017 · US
Occlusion detection techniques for a fluid infusion device having a rotary pump mechanism and an optical sensor
US-2016369790-A1 · Dec 22, 2016 · US