Automatic controls method for adding the optimal amount of refrigerant to a direct expansion cooling system
US-2019323749-A1 · Oct 24, 2019 · US
Pressures
Pressures · 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 | F25B2700/19 |
| Official title | Pressures |
| Display label | Pressures |
| Total patents | 262 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 4 |
| 2016 | 14 |
| 2017 | 17 |
| 2018 | 16 |
| 2019 | 20 |
| 2020 | 27 |
| 2021 | 26 |
| 2022 | 38 |
| 2023 | 22 |
| 2024 | 36 |
| 2025 | 30 |
| 2026 | 12 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
A method for handling fault mitigation in a vapour compression system
US-2019301780-A1 · Oct 3, 2019 · US
Cryostat
US-2019301677-A1 · Oct 3, 2019 · US
Refrigerant charge management systems and methods
US-2019277548-A1 · Sep 12, 2019 · US
Defrost control using fan data
US-10352611-B2 · Jul 16, 2019 · US
Heating, ventilation, air-conditioning, and refrigeration system
US-2019170410-A1 · Jun 6, 2019 · US
Hose free sensor system for refrigerant unit
US-10281183-B2 · May 7, 2019 · US
Refrigerant cooling and lubrication system with refrigerant source access from an evaporator
US-10274233-B2 · Apr 30, 2019 · US
Refrigerating system and method for controlling the same
US-10254025-B2 · Apr 9, 2019 · US
System and Method for Checking and Calibrating Scale for Measuring Fluid in Refrigerant Recovery System
US-2018363963-A1 · Dec 20, 2018 · US
Refrigeration cycle apparatus including a plurality of branch units
US-10139142-B2 · Nov 27, 2018 · US
Pressure control for refrigerant system
US-10132542-B2 · Nov 20, 2018 · US
A method for controlling a vapour compression system with a variable receiver pressure setpoint
US-2018283750-A1 · Oct 4, 2018 · US
Pressure control device
US-2018283724-A1 · Oct 4, 2018 · US
Refrigeration cycle apparatus
US-2018283746-A1 · Oct 4, 2018 · US
A method for controlling a vapour compression system in ejector mode for a prolonged time
US-2018283754-A1 · Oct 4, 2018 · US
Cooling System
US-2018231289-A1 · Aug 16, 2018 · US
Apparatus and method for hybrid water heating and air cooling and control thereof
US-10041702-B2 · Aug 7, 2018 · US
Low charge packaged ammonia refrigeration system with evaporative condenser
US-2018163998-A1 · Jun 14, 2018 · US
Purge system for chiller system
US-9987568-B2 · Jun 5, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F25B2700/19?
- CPC F25B2700/19 is the Cooperative Patent Classification code for “Pressures.”
- How many patents are filed under CPC F25B2700/19 (Pressures)?
- Our database includes 262 publications tagged with this CPC code.
- Is patent activity under CPC F25B2700/19 growing?
- Publication counts under this code: 36 in 2024 vs 30 in 2025 (latest complete years).