Fluid Sample Pump System
US-2025264092-A1 · Aug 21, 2025 · 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 | F04B9/123 |
| Official title | having only one pumping chamber |
| Display label | having only one pumping chamber |
| Total patents | 31 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly growing.
| Year | Patents |
|---|---|
| 2015 | 4 |
| 2016 | 5 |
| 2017 | 4 |
| 2018 | 1 |
| 2019 | 3 |
| 2020 | 5 |
| 2021 | 1 |
| 2022 | 1 |
| 2023 | 1 |
| 2024 | 3 |
| 2025 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Fluid Processing System with High Pressure Pneumatic Syringe Pump
US-2025214079-A1 · Jul 3, 2025 · US
Fluid sample pump system
US-12320349-B2 · Jun 3, 2025 · US
Medical fluid therapy machine including pneumatic pump box and accumulators therefore
US-2024200546-A1 · Jun 20, 2024 · US
Medical fluid therapy machine including pneumatic pump box and accumulators therefore
US-11946466-B2 · Apr 2, 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
Single piston foundation bag-in-box (bib) pump
US-2022128048-A1 · Apr 28, 2022 · US
Device configured to intermittently supply a liquid plastic component
US-10960575-B2 · Mar 30, 2021 · US
System and method for purifying liquid by reverse osmosis
US-10874985-B2 · Dec 29, 2020 · US
Self-lubricating pump throat seal
US-10774830-B2 · Sep 15, 2020 · US
Dual mode fuel pump system
US-10655622-B2 · May 19, 2020 · US
Device and system for monitoring a pneumatically actuated alternating linear displacement pump
US-10626862-B2 · Apr 21, 2020 · US
Viscous material supply device, cover sheet used in viscous material supply device, viscous material supply method, and method for attaching cover sheet
US-2020018299-A1 · Jan 16, 2020 · US
System and method for purifying liquid by reverse osmosis
US-2019366271-A1 · Dec 5, 2019 · US
Self-lubricating pump throat seal
US-2019301448-A1 · Oct 3, 2019 · US
Thermal-operated pump
US-10215165-B2 · Feb 26, 2019 · US
Medical fluid therapy machine including pneumatic pump box and accumulators therefore
US-2018117233-A1 · May 3, 2018 · US
Accumulator over hydraulic pump double-acting cylinder for artificial lift operations
US-9828979-B2 · Nov 28, 2017 · US
Reciprocating pump with electronically monitored air valve and piston
US-9677549-B2 · Jun 13, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F04B9/123?
- CPC F04B9/123 is the Cooperative Patent Classification code for “having only one pumping chamber.”
- How many patents are filed under CPC F04B9/123 (having only one pumping chamber)?
- Our database includes 31 publications tagged with this CPC code.
- Is patent activity under CPC F04B9/123 growing?
- Publication counts under this code: 3 in 2024 vs 3 in 2025 (latest complete years).