Pump arrangement
US-2025270994-A1 · Aug 28, 2025 · US
at least one pump being of the rotary-piston positive-displacement type
at least one pump being of the rotary-piston positive-displacement type · 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 | F04B23/12 |
| Official title | at least one pump being of the rotary-piston positive-displacement type |
| Display label | at least one pump being of the rotary-piston positive-displacement type |
| Total patents | 35 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 6 |
| 2017 | 4 |
| 2018 | 3 |
| 2019 | 4 |
| 2020 | 3 |
| 2021 | 4 |
| 2022 | 3 |
| 2023 | 2 |
| 2024 | 2 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Fluid supply system
US-12044179-B2 · Jul 23, 2024 · US
Recirculation gas flow control and distribution module for fuel cells
US-2024234758-A1 · Jul 11, 2024 · US
High-pressure fuel pump
US-11808242-B2 · Nov 7, 2023 · US
Multi-pump apparatus of cooling system
US-11739756-B2 · Aug 29, 2023 · US
Multi-pump apparatus of cooling system
US-2022170467-A1 · Jun 2, 2022 · US
Systems and methods for an electrically driven direct injection fuel pump
US-11300045-B2 · Apr 12, 2022 · US
High-Pressure Fuel Pump
US-2022049674-A1 · Feb 17, 2022 · US
Linear hydraulic pump for submersible applications
US-11118582-B2 · Sep 14, 2021 · US
Fluid supply system
US-2021164399-A1 · Jun 3, 2021 · US
Connection assembly with feed pump and elastic element
US-11022113-B2 · Jun 1, 2021 · US
Systems and methods for an electrically driven direct injection fuel pump
US-2021017903-A1 · Jan 21, 2021 · US
Hydraulic device that controls pulsation in first oil by increasing rotation number of second pump
US-10865812-B2 · Dec 15, 2020 · US
Hydraulic pump assembly
US-10670051-B1 · Jun 2, 2020 · US
Cooling pump assembly and cooling system for utility vehicle
US-10589618-B1 · Mar 17, 2020 · US
Connection Assembly with Feed Pump and Elastic Element
US-2019360484-A1 · Nov 28, 2019 · US
Electric motor driven pump
US-10465679-B2 · Nov 5, 2019 · US
Linear Hydraulic Pump for Submersible Applications
US-2019323499-A1 · Oct 24, 2019 · US
Hydraulic control device
US-2019048899-A1 · Feb 14, 2019 · US
Hydraulic pump assembly
US-10138910-B1 · Nov 27, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F04B23/12?
- CPC F04B23/12 is the Cooperative Patent Classification code for “at least one pump being of the rotary-piston positive-displacement type.”
- How many patents are filed under CPC F04B23/12 (at least one pump being of the rotary-piston positive-displacement type)?
- Our database includes 35 publications tagged with this CPC code.
- Is patent activity under CPC F04B23/12 growing?
- Publication counts under this code: 2 in 2024 vs 1 in 2025 (latest complete years).