Electrochemical actuators and actuator arrays
US-2025270988-A1 · Aug 28, 2025 · US
Machines or pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B1/00 - F04B17/00
Machines or pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B1/00 - F04B17/00 · 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 | F04B19/00 |
| Official title | Machines or pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B1/00 - F04B17/00 |
| Display label | Machines or pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B1/00 - F04B17/00 |
| Total patents | 55 |
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 |
| 2016 | 1 |
| 2017 | 2 |
| 2018 | 3 |
| 2019 | 8 |
| 2020 | 5 |
| 2021 | 8 |
| 2022 | 6 |
| 2023 | 9 |
| 2024 | 5 |
| 2025 | 5 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Fluid pump with whistle
US-12361800-B2 · Jul 15, 2025 · US
Electrochemical actuators and actuator arrays
US-12297822-B2 · May 13, 2025 · US
Liquid pumping units, and related systems and methods
US-2025142789-A1 · May 1, 2025 · US
Liquid pumping units, and related systems and methods
US-12193193-B2 · Jan 7, 2025 · US
Electroosmotic pump
US-2024382672-A1 · Nov 21, 2024 · US
Electroosmotic pump
US-12090299-B2 · Sep 17, 2024 · US
Fluid pump with whistle
US-2024203218-A1 · Jun 20, 2024 · US
Fluid pump with whistle
US-11954997-B2 · Apr 9, 2024 · US
Electroosmotic pump and fluid-pumping system comprising the same
US-11859602-B2 · Jan 2, 2024 · US
Retainer assembly for pump and methods
US-11852127-B2 · Dec 26, 2023 · US
Electroosmotic pump
US-11725640-B2 · Aug 15, 2023 · US
Retainer Assembly for Pump and Methods
US-2023235730-A1 · Jul 27, 2023 · US
Electroosmotic pump and fluid-pumping system comprising the same
US-2023204020-A1 · Jun 29, 2023 · US
Modular suction gland assembly
US-2023141878-A1 · May 11, 2023 · US
Fluid Pump with Whistle
US-2023086466-A1 · Mar 23, 2023 · US
Electroosmotic pump
US-2023077910-A1 · Mar 16, 2023 · US
Electroosmotic pump and fluid-pumping system comprising the same
US-11603831-B2 · Mar 14, 2023 · US
Fluid pump with whistle
US-11545011-B2 · Jan 3, 2023 · US
Liquid pumping units, and related systems and methods
US-2022354025-A1 · Nov 3, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F04B19/00?
- CPC F04B19/00 is the Cooperative Patent Classification code for “Machines or pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B1/00 - F04B17/00.”
- How many patents are filed under CPC F04B19/00 (Machines or pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B1/00 - F04B17/00)?
- Our database includes 55 publications tagged with this CPC code.
- Is patent activity under CPC F04B19/00 growing?
- Publication counts under this code: 5 in 2024 vs 5 in 2025 (latest complete years).