Reciprocating compressor
US-11208991-B2 · Dec 28, 2021 · US
the members being disc valves
the members being disc valves · 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 | F04B39/102 |
| Official title | {the members being disc valves} |
| Display label | the members being disc valves |
| Total patents | 99 |
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 | 6 |
| 2017 | 11 |
| 2018 | 6 |
| 2019 | 12 |
| 2020 | 7 |
| 2021 | 19 |
| 2022 | 13 |
| 2023 | 5 |
| 2024 | 10 |
| 2025 | 6 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Single piece valve plate assembly for a reciprocating compressor, the valve plate assembly including a valve plate and a suction valve retainer that are integrally formed as a unitary body
US-2021388828-A1 · Dec 16, 2021 · US
Aspirator air vent valve
US-11148818-B2 · Oct 19, 2021 · US
Compressor including discharge plenum
US-2021310470-A1 · Oct 7, 2021 · US
Single piece valve plate assembly for a reciprocating compressor
US-11105326-B2 · Aug 31, 2021 · US
Structure, diaphragm-type compressor, cooler, projector, and method for manufacturing structure
US-11098704-B2 · Aug 24, 2021 · US
Piston compressor including a suction throttle
US-11047373-B2 · Jun 29, 2021 · US
Linear compressor
US-2021190059-A1 · Jun 24, 2021 · US
Air flow generating device
US-2021140422-A1 · May 13, 2021 · US
Linear compressor with sound dampening gaskets
US-10975853-B2 · Apr 13, 2021 · US
Linear compressor
US-2021095653-A1 · Apr 1, 2021 · US
Linear compressor having discharge valve, support with rotation prevention protrusions, and discharge cover with protrusion accommodation grooves
US-10927828-B2 · Feb 23, 2021 · US
Linear compressor
US-10900477-B2 · Jan 26, 2021 · US
Linear compressor
US-10890169-B2 · Jan 12, 2021 · US
Valve and gas control device
US-10871156-B2 · Dec 22, 2020 · US
Process and device for ventilating a patient
US-2020345962-A1 · Nov 5, 2020 · US
Aspirator air vent valve
US-2020122848-A1 · Apr 23, 2020 · US
Structure, Diaphragm-Type Compressor, Cooler, Projector, And Method For Manufacturing Structure
US-2020056605-A1 · Feb 20, 2020 · US
Reciprocating compressor
US-2020003198-A1 · Jan 2, 2020 · US
Linear compressor
US-2020003454-A1 · Jan 2, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F04B39/102?
- CPC F04B39/102 is the Cooperative Patent Classification code for “the members being disc valves.”
- How many patents are filed under CPC F04B39/102 (the members being disc valves)?
- Our database includes 99 publications tagged with this CPC code.
- Is patent activity under CPC F04B39/102 growing?
- Publication counts under this code: 10 in 2024 vs 6 in 2025 (latest complete years).