Cooling System
US-2020224944-A1 · Jul 16, 2020 · US
with lubrication control systems
with lubrication control systems · 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 | F04B39/0207 |
| Official title | {with lubrication control systems} |
| Display label | with lubrication control systems |
| Total patents | 140 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 6 |
| 2016 | 15 |
| 2017 | 11 |
| 2018 | 14 |
| 2019 | 13 |
| 2020 | 22 |
| 2021 | 14 |
| 2022 | 15 |
| 2023 | 10 |
| 2024 | 13 |
| 2025 | 6 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Heat pump
US-10495325-B2 · Dec 3, 2019 · US
Compressor with flooded start control
US-10480495-B2 · Nov 19, 2019 · US
Multiple-Compressor System With Suction Valve And Method Of Controlling Suction Valve
US-2019323497-A1 · Oct 24, 2019 · US
Air Compressor
US-2019242382-A1 · Aug 8, 2019 · US
Compressor system including a plurality of compressors
US-10330093-B2 · Jun 25, 2019 · US
Variable displacement swash plate compressor
US-10309382-B2 · Jun 4, 2019 · US
Air Compressor
US-2019136843-A1 · May 9, 2019 · US
Lubricating oil supply apparatus and compressor using lubricating oil supply apparatus
US-2019093658-A1 · Mar 28, 2019 · US
Refrigerant Compressor Unit
US-2019032666-A1 · Jan 31, 2019 · US
Air Compressor
US-2019024651-A1 · Jan 24, 2019 · US
Continuous reservoir level monitoring
US-2019024547-A1 · Jan 24, 2019 · US
Compressor having oil-level sensing system
US-10180139-B2 · Jan 15, 2019 · US
Compressor for refrigeration and air conditioning, and refrigeration and air conditioning device
US-10167438-B2 · Jan 1, 2019 · US
Compressor, refrigerant compressing apparatus, and refrigerating apparatus
US-2018347556-A1 · Dec 6, 2018 · US
Compressor device and method for controlling such a compressor device
US-10145485-B2 · Dec 4, 2018 · US
Method and apparatus for common pressure and oil equalization in multi-compressor systems
US-2018340526-A1 · Nov 29, 2018 · US
Compressor having oil-level sensing system
US-10125768-B2 · Nov 13, 2018 · US
Compressor With Flooded Start Control
US-2018320672-A1 · Nov 8, 2018 · US
Refrigerant Compressor System
US-2018298905-A1 · Oct 18, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F04B39/0207?
- CPC F04B39/0207 is the Cooperative Patent Classification code for “with lubrication control systems.”
- How many patents are filed under CPC F04B39/0207 (with lubrication control systems)?
- Our database includes 140 publications tagged with this CPC code.
- Is patent activity under CPC F04B39/0207 growing?
- Publication counts under this code: 13 in 2024 vs 6 in 2025 (latest complete years).