Screw compressor with adjustable passage
US-12055143-B2 · Aug 6, 2024 · US
characterised by changing the positions of the inlet or outlet openings with respect to the working chamber
characterised by changing the positions of the inlet or outlet openings with respect to the working chamber · 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 | F04C28/10 |
| Official title | characterised by changing the positions of the inlet or outlet openings with respect to the working chamber |
| Display label | characterised by changing the positions of the inlet or outlet openings with respect to the working chamber |
| Total patents | 45 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 4 |
| 2016 | 4 |
| 2017 | 5 |
| 2018 | 4 |
| 2019 | 11 |
| 2020 | 2 |
| 2021 | 6 |
| 2022 | 6 |
| 2023 | 2 |
| 2024 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Rotary compressor
US-2023349382-A1 · Nov 2, 2023 · US
Compressor having capacity modulation assembly
US-11754072-B2 · Sep 12, 2023 · US
Screw compressor with adjustable passage
US-2022372978-A1 · Nov 24, 2022 · US
Gas compressor
US-11448217-B2 · Sep 20, 2022 · US
Scroll compressor
US-11415131-B2 · Aug 16, 2022 · US
Scroll compressor
US-2022154718-A1 · May 19, 2022 · US
Screw compressor
US-2022082099-A1 · Mar 17, 2022 · US
Scroll compressor that includes a non-orbiting scroll member having a connection passage portion connected first valve assembly and second valve assembly
US-11215181-B2 · Jan 4, 2022 · US
Compressor Having Capacity Modulation Assembly
US-2021190070-A1 · Jun 24, 2021 · US
Intermediate discharge port for a compressor
US-11022122-B2 · Jun 1, 2021 · US
Variable volume ratio compressor
US-11022119-B2 · Jun 1, 2021 · US
Compressor having capacity modulation assembly
US-10995753-B2 · May 4, 2021 · US
Variable volume ratio compressor
US-10962008-B2 · Mar 30, 2021 · US
Gas Compressor
US-2021017988-A1 · Jan 21, 2021 · US
Scroll compressor having a capacity variable device
US-10815998-B2 · Oct 27, 2020 · US
Scroll compressor with partial load capacity
US-10738777-B2 · Aug 11, 2020 · US
Compressor Having Capacity Modulation Assembly
US-2019353164-A1 · Nov 21, 2019 · US
Scroll compressor
US-10428818-B2 · Oct 1, 2019 · US
Scroll compressor with partial load capacity
US-2019293070-A1 · Sep 26, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F04C28/10?
- CPC F04C28/10 is the Cooperative Patent Classification code for “characterised by changing the positions of the inlet or outlet openings with respect to the working chamber.”
- How many patents are filed under CPC F04C28/10 (characterised by changing the positions of the inlet or outlet openings with respect to the working chamber)?
- Our database includes 45 publications tagged with this CPC code.
- Is patent activity under CPC F04C28/10 growing?
- Publication counts under this code: 2 in 2023 vs 1 in 2024 (latest complete years).