Screw Compressor with Oil Shutoff and Method
US-2017356448-A1 · Dec 14, 2017 · US
Mechanical Engineering
Mechanical Engineering · 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 | F25B2500/16 |
| Official title | — |
| Display label | Mechanical Engineering (mapped technology topic) |
| Total patents | 411 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 19 |
| 2016 | 23 |
| 2017 | 28 |
| 2018 | 38 |
| 2019 | 46 |
| 2020 | 53 |
| 2021 | 43 |
| 2022 | 43 |
| 2023 | 35 |
| 2024 | 35 |
| 2025 | 41 |
| 2026 | 7 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Refrigeration cycle apparatus, and abnormality detection system for refrigeration cycle apparatus
US-2017268811-A1 · Sep 21, 2017 · US
Chiller compressor oil conditioning
US-2017248352-A1 · Aug 31, 2017 · US
Refrigerant cooling and lubrication system with refrigerant vapor vent line
US-2017234585-A1 · Aug 17, 2017 · US
Compressor and oil amount management system for compressor
US-9689593-B2 · Jun 27, 2017 · US
Azeotrope to azeotrope-like composition containing 1-chloro-3,3,3-trifluoropropene and 1,1,1,3,3-pentafluoropropane
US-2017174965-A1 · Jun 22, 2017 · US
Lubricant for compression type refrigerating machines
US-9683190-B2 · Jun 20, 2017 · US
Refrigerator oil composition, and refrigeration device
US-2017166831-A1 · Jun 15, 2017 · US
Heat Engine And Method For Operating A Heat Engine
US-2017167763-A1 · Jun 15, 2017 · US
Oil management in a refrigeration system - compressor oil cooler integrated into gascooler
US-2017167764-A1 · Jun 15, 2017 · US
Refrigerant cooling and lubrication system with refrigerant vapor vent line
US-9671146-B2 · Jun 6, 2017 · US
Refrigerant cooling and lubrication system with refrigerant source access from an evaporator
US-2017146272-A1 · May 25, 2017 · US
Refrigerant lube system
US-2017097007-A1 · Apr 6, 2017 · US
Refrigeration cycle apparatus
US-2017089616-A1 · Mar 30, 2017 · US
Refrigerator Oil, and Working Fluid Composition for Refrigerators
US-2017073602-A1 · Mar 16, 2017 · US
Composition for heat cycle system and heat cycle system
US-2017058174-A1 · Mar 2, 2017 · US
Composition for heat cycle system and heat cycle system
US-2017058172-A1 · Mar 2, 2017 · US
System for heating a compressor assembly in an hvac system
US-2017016439-A1 · Jan 19, 2017 · US
Air-conditioning apparatus
US-9528733-B2 · Dec 27, 2016 · US
Refrigerant cooling and lubrication system
US-9518767-B2 · Dec 13, 2016 · US
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F25B2500/16?
- CPC F25B2500/16 is the Cooperative Patent Classification code for “Mechanical Engineering.”
- How many patents are filed under CPC F25B2500/16 (Mechanical Engineering)?
- Our database includes 411 publications tagged with this CPC code.
- Is patent activity under CPC F25B2500/16 growing?
- Publication counts under this code: 35 in 2024 vs 41 in 2025 (latest complete years).