Aspiration vacuum source
US-12594371-B2 · Apr 7, 2026 · US
rectilinear movement of the pumping member in the working direction being obtained by a single-acting elastic-fluid motor, e.g. actuated in the other direction by gravity or a spring
rectilinear movement of the pumping member in the working direction being obtained by a single-acting elastic-fluid motor, e.g. actuated in the other direction by gravity or a spring · 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 | F04B9/127 |
| Official title | rectilinear movement of the pumping member in the working direction being obtained by a single-acting elastic-fluid motor, e.g. actuated in the other direction by gravity or a spring |
| Display label | rectilinear movement of the pumping member in the working direction being obtained by a single-acting elastic-fluid motor, e.g. actuated in the other direction by gravity or a spring |
| Total patents | 28 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 4 |
| 2018 | 1 |
| 2019 | 1 |
| 2020 | 4 |
| 2021 | 2 |
| 2022 | 2 |
| 2023 | 1 |
| 2024 | 9 |
| 2025 | 2 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Cyclic aspiration system producing cyclic aspiration pressure waveform using vacuum pump and positive pressure pulse generator mechanism
US-12589198-B2 · Mar 31, 2026 · US
Fluid Sample Pump System
US-2025264092-A1 · Aug 21, 2025 · US
Fluid sample pump system
US-12320349-B2 · Jun 3, 2025 · US
Cyclic aspiration system with a non-powered internal structural impediment engaging with a clot assisting in capture
US-2024277363-A1 · Aug 22, 2024 · US
Aspiration catheter with stabilizing structural member minimizing risk of damage to an inner wall of a vessel during aspiration
US-2024277354-A1 · Aug 22, 2024 · US
Cyclic aspiration system producing cyclic aspiration pressure waveform using vacuum pump and positive pressure pulse generator mechanism
US-2024277355-A1 · Aug 22, 2024 · US
Aspiration vacuum source
US-2024277358-A1 · Aug 22, 2024 · US
Pulsatile aspiration system using a static vacuum source with intermittent injection of a pressure pulse
US-2024277364-A1 · Aug 22, 2024 · US
Cyclic aspiration system producing a cyclic aspiration pressure waveform using a vacuum pump and positive pressure pulse generator mechanism
US-2024277357-A1 · Aug 22, 2024 · US
Cyclic aspiration system producing a cyclic aspiration pressure waveform using a vacuum pump and positive pressure pulse generator mechanism
US-2024277914-A1 · Aug 22, 2024 · US
Cyclic aspiration system producing a cyclic aspiration pressure waveform using a dual pressure generator receptacle in lieu of a vacuum pump
US-2024277356-A1 · Aug 22, 2024 · US
Fluid Sample Pump System
US-2024077065-A1 · Mar 7, 2024 · US
Single piston foundation bag-in-box (BIB) pump
US-11592013-B2 · Feb 28, 2023 · US
Muscle-powered pulsation device for long-term cardiac support
US-11391268-B2 · Jul 19, 2022 · US
Single piston foundation bag-in-box (bib) pump
US-2022128048-A1 · Apr 28, 2022 · US
Pressure booster and cylinder apparatus provided with same
US-11143175-B2 · Oct 12, 2021 · US
Pressure booster and cylinder apparatus provided with same
US-2021102558-A1 · Apr 8, 2021 · US
Cryogenic pump
US-10774820-B2 · Sep 15, 2020 · US
Muscle-Powered Pulsation Device for Long-Term Cardiac Support
US-2020121837-A1 · Apr 23, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F04B9/127?
- CPC F04B9/127 is the Cooperative Patent Classification code for “rectilinear movement of the pumping member in the working direction being obtained by a single-acting elastic-fluid motor, e.g. actuated in the other direction by gravity or a spring.”
- How many patents are filed under CPC F04B9/127 (rectilinear movement of the pumping member in the working direction being obtained by a single-acting elastic-fluid motor, e.g. actuated in the other direction by gravity or a spring)?
- Our database includes 28 publications tagged with this CPC code.
- Is patent activity under CPC F04B9/127 growing?
- Publication counts under this code: 9 in 2024 vs 2 in 2025 (latest complete years).