Scroll compressor
US-2020378384-A1 · Dec 3, 2020 · US
of the non-return type
of the non-return 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 | F04C29/126 |
| Official title | {of the non-return type} |
| Display label | of the non-return type |
| Total patents | 149 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 12 |
| 2016 | 12 |
| 2017 | 10 |
| 2018 | 11 |
| 2019 | 9 |
| 2020 | 14 |
| 2021 | 14 |
| 2022 | 21 |
| 2023 | 15 |
| 2024 | 15 |
| 2025 | 12 |
| 2026 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Vacuum pump with sound absorption and check valve
US-10774835-B2 · Sep 15, 2020 · US
High pressure compressor and refrigerating machine having a high pressure compressor
US-10731647-B2 · Aug 4, 2020 · US
Inlet valve for the inlet of a compressor element and compressor and compressor element equipped with it
US-2020173563-A1 · Jun 4, 2020 · US
Compressor
US-10578106-B2 · Mar 3, 2020 · US
Variable displacement scroll compressor
US-10563891-B2 · Feb 18, 2020 · US
Compressor Having Capacity Modulation Assembly
US-2019353164-A1 · Nov 21, 2019 · US
Motor vehicle vacuum pump arrangement
US-2019323506-A1 · Oct 24, 2019 · US
Check valve assembly
US-2019316694-A1 · Oct 17, 2019 · US
Scroll compressor
US-10428818-B2 · Oct 1, 2019 · US
Compressor
US-2019277285-A1 · Sep 12, 2019 · US
Scroll compressor
US-2019249667-A1 · Aug 15, 2019 · US
Scroll compressor that includes a non-orbiting scroll having a bypass hole
US-10316843-B2 · Jun 11, 2019 · US
Scroll compressor counterweight with axially distributed mass
US-10233927-B2 · Mar 19, 2019 · US
Compressor
US-2019040861-A1 · Feb 7, 2019 · US
Rotary compressor
US-2018347565-A1 · Dec 6, 2018 · US
Vacuum pump with sound absorption and check valve
US-2018335034-A1 · Nov 22, 2018 · US
Cylinder-rotation compressor with a discharge valve
US-10125770-B2 · Nov 13, 2018 · US
Compressor
US-10094380-B2 · Oct 9, 2018 · US
Motor vehicle vacuum pump
US-2018238331-A1 · Aug 23, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F04C29/126?
- CPC F04C29/126 is the Cooperative Patent Classification code for “of the non-return type.”
- How many patents are filed under CPC F04C29/126 (of the non-return type)?
- Our database includes 149 publications tagged with this CPC code.
- Is patent activity under CPC F04C29/126 growing?
- Publication counts under this code: 15 in 2024 vs 12 in 2025 (latest complete years).