Compressor oil injection cooling
US-2026078747-A1 · Mar 19, 2026 · US
Cooling by injecting a liquid in the gas to be compressed
Cooling by injecting a liquid in the gas to be compressed · 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 | F04B39/062 |
| Official title | {Cooling by injecting a liquid in the gas to be compressed} |
| Display label | Cooling by injecting a liquid in the gas to be compressed |
| Total patents | 50 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 1 |
| 2017 | 3 |
| 2018 | 4 |
| 2019 | 5 |
| 2020 | 5 |
| 2021 | 4 |
| 2022 | 6 |
| 2023 | 5 |
| 2024 | 3 |
| 2025 | 7 |
| 2026 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Assembly for compressing gas having a housing comprising coolers in a central section, method for cooling, and use of such an assembly
US-12565881-B2 · Mar 3, 2026 · US
Method for controlling an air-cooled compressor or vacuum pump device and an air-cooled compressor or vacuum pump device
US-2026028932-A1 · Jan 29, 2026 · US
Oil-injected compressor device
US-12523226-B2 · Jan 13, 2026 · US
Economizer injection in a reciprocating compressor
US-2025347446-A1 · Nov 13, 2025 · US
Method for controlling a first reference temperature in a device for compressing gas
US-12429044-B2 · Sep 30, 2025 · US
Economizer injection in a reciprocating compressor
US-12398926-B2 · Aug 26, 2025 · US
Compressor installation and method for delivering a compressed gas
US-2025177914-A1 · Jun 5, 2025 · US
Method for controlling a first reference temperature in a device for compressing gas
US-2025146486-A1 · May 8, 2025 · US
Compressor installation and method for delivering a compressed gas
US-12251659-B2 · Mar 18, 2025 · US
Oil-injected compressor device
US-2025067266-A1 · Feb 27, 2025 · US
Assembly for compressing gas, method for cooling, and use of such an assembly
US-2024376878-A1 · Nov 14, 2024 · US
Control unit for a refrigerant compressor
US-11988429-B2 · May 21, 2024 · US
Cooling system for a hydrogen compressor
US-2024151222-A1 · May 9, 2024 · US
Refrigerant Compressor Unit
US-2023384003-A1 · Nov 30, 2023 · US
Centrifugal compressor with piston intensifier
US-11788521-B2 · Oct 17, 2023 · US
Compressor and compressor system
US-2023296091-A1 · Sep 21, 2023 · US
Method of controlling the temperature and mass flow of a liquid injected into the bearings and compressor space of a compressor using two separated liquid supplies
US-11614088-B2 · Mar 28, 2023 · US
Economizer injection in a reciprocating compressor
US-2023041180-A1 · Feb 9, 2023 · US
Cooling circuit having a gas discharge unit removing gaseous refrigerant from a compressor feed line
US-11525605-B2 · Dec 13, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F04B39/062?
- CPC F04B39/062 is the Cooperative Patent Classification code for “Cooling by injecting a liquid in the gas to be compressed.”
- How many patents are filed under CPC F04B39/062 (Cooling by injecting a liquid in the gas to be compressed)?
- Our database includes 50 publications tagged with this CPC code.
- Is patent activity under CPC F04B39/062 growing?
- Publication counts under this code: 3 in 2024 vs 7 in 2025 (latest complete years).