Reciprocating compressor valve body made by additive manufacturing
US-2019390664-A1 · Dec 26, 2019 · US
Actuation of distribution members
Actuation of distribution members · 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 | F04B39/08 |
| Official title | Actuation of distribution members |
| Display label | Actuation of distribution members |
| Total patents | 137 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 7 |
| 2016 | 14 |
| 2017 | 8 |
| 2018 | 22 |
| 2019 | 19 |
| 2020 | 21 |
| 2021 | 8 |
| 2022 | 11 |
| 2023 | 7 |
| 2024 | 7 |
| 2025 | 11 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Reciprocating compressor
US-2019368482-A1 · Dec 5, 2019 · US
Linear compressor
US-2019309746-A1 · Oct 10, 2019 · US
Linear compressor
US-2019309743-A1 · Oct 10, 2019 · US
Distributor head for a suction pump
US-2019219045-A1 · Jul 18, 2019 · US
Improper opening detection method of multiple suction reciprocating compressor suction valve
US-10344754-B2 · Jul 9, 2019 · US
Precise control of suction damping device in a variable displacement compressor
US-2019170128-A1 · Jun 6, 2019 · US
Compressor Having an Energy Saving Apparatus, and Method for Relieving the Compressor
US-2019040855-A1 · Feb 7, 2019 · US
Piston Compressor with a Closing Device for the Outlet Line
US-2019017498-A1 · Jan 17, 2019 · US
Piston Compressor Having a Venting Device
US-2018372087-A1 · Dec 27, 2018 · US
Gas compression system for drying at least one sensor of a motor vehicle
US-2018370498-A1 · Dec 27, 2018 · US
Vacuum pumping device, vacuum pump, and vacuum valve
US-2018340521-A1 · Nov 29, 2018 · US
Air compressor
US-10138878-B2 · Nov 27, 2018 · US
Control valve for variable displacement compressor
US-2018291888-A1 · Oct 11, 2018 · US
Operational status checking system of alternative compressor valve and method for checking operational status of alternative compressor valve
US-10094374-B2 · Oct 9, 2018 · US
Method for Actuating Semi-Commanded Valve and System for Actuating Semi-Commanded Valve for Multi-Suction Alternative Compressor
US-2018274530-A1 · Sep 27, 2018 · US
Device for conserving power in a piston compressor
US-10072653-B2 · Sep 11, 2018 · US
Variable displacement type swash plate compressor
US-10066614-B2 · Sep 4, 2018 · US
Improper Opening Detection Method of Multiple Suction Reciprocating Compressor Suction Valve
US-2018230991-A1 · Aug 16, 2018 · US
Railway vehicle air compressor with integral high pressure cylinder unloader valve
US-10036376-B2 · Jul 31, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F04B39/08?
- CPC F04B39/08 is the Cooperative Patent Classification code for “Actuation of distribution members.”
- How many patents are filed under CPC F04B39/08 (Actuation of distribution members)?
- Our database includes 137 publications tagged with this CPC code.
- Is patent activity under CPC F04B39/08 growing?
- Publication counts under this code: 7 in 2024 vs 11 in 2025 (latest complete years).