Aspiration vacuum source
US-12594371-B2 · Apr 7, 2026 · US
having only one pumping chamber
having only one pumping chamber · 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 | F04B9/103 |
| Official title | having only one pumping chamber |
| Display label | having only one pumping chamber |
| Total patents | 32 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2016 | 3 |
| 2017 | 3 |
| 2018 | 2 |
| 2019 | 2 |
| 2020 | 4 |
| 2021 | 2 |
| 2022 | 1 |
| 2023 | 1 |
| 2024 | 11 |
| 2025 | 1 |
| 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
Apparatuses and methods of pumping sensitive fluids
US-2025230904-A1 · Jul 17, 2025 · US
Material supply pump for spacer of insulating glass
US-2024342747-A1 · Oct 17, 2024 · US
Pump
US-2024335604-A1 · Oct 10, 2024 · 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
Apparatus for conveying thick matter
US-11959468-B2 · Apr 16, 2024 · US
Hydraulically actuated pump for fluid administration
US-11642456-B2 · May 9, 2023 · US
Pump system
US-2022243708-A1 · Aug 4, 2022 · US
Apparatus for Conveying Thick Matter
US-2021239103-A1 · Aug 5, 2021 · US
Fluid pumping device
US-10895252-B2 · Jan 19, 2021 · US
Multiphase production boost method and system
US-10801482-B2 · Oct 13, 2020 · US
Multiphase production boost method and system
US-10774822-B2 · Sep 15, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F04B9/103?
- CPC F04B9/103 is the Cooperative Patent Classification code for “having only one pumping chamber.”
- How many patents are filed under CPC F04B9/103 (having only one pumping chamber)?
- Our database includes 32 publications tagged with this CPC code.
- Is patent activity under CPC F04B9/103 growing?
- Publication counts under this code: 11 in 2024 vs 1 in 2025 (latest complete years).