Reciprocating gas compressor valve
US-11365730-B2 · Jun 21, 2022 · US
the members being of the poppet valve type
the members being of the poppet valve 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 | F04B39/1013 |
| Official title | {the members being of the poppet valve type} |
| Display label | the members being of the poppet valve type |
| Total patents | 81 |
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 | 4 |
| 2016 | 5 |
| 2017 | 8 |
| 2018 | 10 |
| 2019 | 9 |
| 2020 | 8 |
| 2021 | 14 |
| 2022 | 8 |
| 2023 | 5 |
| 2024 | 5 |
| 2025 | 4 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Cylinder head assembly for reciprocating compressor
US-11225959-B2 · Jan 18, 2022 · US
Check structure for connection of air nozzle of tire and connection hose of air compressor
US-11149892-B2 · Oct 19, 2021 · US
Check joint structure for connection of an air nozzle of a tire and a connector of a connection hose of an air compressor
US-11143346-B2 · Oct 12, 2021 · US
Reciprocating Gas Compressor Valve
US-2021262463-A1 · Aug 26, 2021 · US
Magnetically damped passive valve
US-11098817-B1 · Aug 24, 2021 · US
Economizer control systems and methods
US-2021215408-A1 · Jul 15, 2021 · US
Anti-spray structure for conention of air nozzle of tire of vehicle and conenction hose of air compressor
US-11046128-B2 · Jun 29, 2021 · US
Anti-spray joint structure of connection hose of vehicle air compressor
US-11046129-B2 · Jun 29, 2021 · US
Check joint structure for connection of air nozzle of tire and connector of connection hose of air compressor
US-2021088161-A1 · Mar 25, 2021 · US
Check structure for connection of air nozzle of tire and connection hose of air compressor
US-2021086460-A1 · Mar 25, 2021 · US
Check joint structure for connection of air nozzle of tire and connection hose of air compressor
US-2021086571-A1 · Mar 25, 2021 · US
Anti-spray joint structure of connection hose of vehicle air compressor
US-2021080041-A1 · Mar 18, 2021 · US
Anti-Spray structure for conention of air nozzle of tire of vehicle and conenction hose of air compressor
US-2021078372-A1 · Mar 18, 2021 · US
Reciprocating gas compressor valve
US-10941763-B2 · Mar 9, 2021 · US
Unloader for a compressor and servicing thereof and compressor provided with an unloader
US-2021003125-A1 · Jan 7, 2021 · US
Jet pump for noncontact tonometry and associated devices, systems, and methods
US-2020300236-A1 · Sep 24, 2020 · US
Compressor valve seat reconditioning limit indicator
US-10781806-B2 · Sep 22, 2020 · US
Piston assembly for an unloader valve of an air compressor
US-10746300-B2 · Aug 18, 2020 · US
Reciprocating compressor
US-10724512-B2 · Jul 28, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F04B39/1013?
- CPC F04B39/1013 is the Cooperative Patent Classification code for “the members being of the poppet valve type.”
- How many patents are filed under CPC F04B39/1013 (the members being of the poppet valve type)?
- Our database includes 81 publications tagged with this CPC code.
- Is patent activity under CPC F04B39/1013 growing?
- Publication counts under this code: 5 in 2024 vs 4 in 2025 (latest complete years).