Compressor with a bypass port
US-9850902-B2 · Dec 26, 2017 · US
specially adapted for stopping, starting, idling or no-load operation
specially adapted for stopping, starting, idling or no-load operation · 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 | F04C28/06 |
| Official title | specially adapted for stopping, starting, idling or no-load operation |
| Display label | specially adapted for stopping, starting, idling or no-load operation |
| Total patents | 286 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 29 |
| 2016 | 20 |
| 2017 | 29 |
| 2018 | 31 |
| 2019 | 35 |
| 2020 | 33 |
| 2021 | 32 |
| 2022 | 18 |
| 2023 | 17 |
| 2024 | 20 |
| 2025 | 19 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Compressor data module
US-9823632-B2 · Nov 21, 2017 · US
Compressor, Air Conditioning System, and a Method of Controlling a Compressor
US-2017314560-A1 · Nov 2, 2017 · US
Hermetic compressor
US-2017241419-A1 · Aug 24, 2017 · US
Scroll compressor having a back pressure plate and a gasket coupled to a fixed scroll plate by at least one coupling member
US-9726175-B2 · Aug 8, 2017 · US
Load/unload control method for compressor system
US-2017218965-A1 · Aug 3, 2017 · US
Compressor and control method thereof
US-9695820-B2 · Jul 4, 2017 · US
System and Method for Compressor Motor Protection
US-2017179709-A1 · Jun 22, 2017 · US
Axial thrust control for rotary compressors
US-9605886-B2 · Mar 28, 2017 · US
System and method for compressor motor protection
US-9590413-B2 · Mar 7, 2017 · US
Motor-driven compressor
US-2017058898-A1 · Mar 2, 2017 · US
Method for preventing condensate in the oil of an oil-injected compressor and compressor in which such a method is applied
US-2016327045-A1 · Nov 10, 2016 · US
Motor-driven compressor
US-9482229-B2 · Nov 1, 2016 · US
Scroll compressor differential pressure control during compressor shutdown transitions
US-9476624-B2 · Oct 25, 2016 · US
Electric compressor
US-9479108-B2 · Oct 25, 2016 · US
Motor-driven compressor
US-2016281716-A1 · Sep 29, 2016 · US
Air conditioner and compressor having power and saving modes of operation
US-9429158-B2 · Aug 30, 2016 · US
Motor-driven compressor
US-2016245288-A1 · Aug 25, 2016 · US
Motor-drive compressor
US-2016245269-A1 · Aug 25, 2016 · US
Liquid injected screw compressor, controller for the transition from an unloaded state to a loaded state of such a screw compressor and method applied therewith
US-2016215777-A1 · Jul 28, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F04C28/06?
- CPC F04C28/06 is the Cooperative Patent Classification code for “specially adapted for stopping, starting, idling or no-load operation.”
- How many patents are filed under CPC F04C28/06 (specially adapted for stopping, starting, idling or no-load operation)?
- Our database includes 286 publications tagged with this CPC code.
- Is patent activity under CPC F04C28/06 growing?
- Publication counts under this code: 20 in 2024 vs 19 in 2025 (latest complete years).