Reversible heat pump with cycle enhancements
US-10514187-B2 · Dec 24, 2019 · US
using vortex effect
using vortex effect · 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 | F25B9/04 |
| Official title | using vortex effect |
| Display label | using vortex effect |
| Total patents | 97 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 5 |
| 2016 | 7 |
| 2017 | 14 |
| 2018 | 18 |
| 2019 | 17 |
| 2020 | 5 |
| 2021 | 12 |
| 2022 | 7 |
| 2023 | 3 |
| 2024 | 4 |
| 2025 | 3 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Heat rejection system for a condenser of a refrigerant loop within an appliance
US-10502478-B2 · Dec 10, 2019 · US
Mechanism for enhanced energy extraction and cooling of pressurized gas at low flow rates
US-10495353-B2 · Dec 3, 2019 · US
Apparatuses and methods for providing temperature controlled portable container
US-10488081-B2 · Nov 26, 2019 · US
Fire extinguishing system and method therefor
US-2019351269-A1 · Nov 21, 2019 · US
Ejector-receiver refrigeration circuit with valve
US-10473370-B2 · Nov 12, 2019 · US
Para-orthohydrogen conversion using a vortex tube
US-10435294-B2 · Oct 8, 2019 · US
Vehicle thermal management system with vortex tube
US-10427538-B2 · Oct 1, 2019 · US
Cooling apparatus for power converter
US-10426065-B2 · Sep 24, 2019 · US
Centrifugal air separators
US-2019247785-A1 · Aug 15, 2019 · US
Vehicle thermal management system with vortex tube
US-10358046-B2 · Jul 23, 2019 · US
Temperature-control device for heating and/or cooling gases or gas mixtures preferably for the use in the field of respiratory protection
US-2019175959-A1 · Jun 13, 2019 · US
Ejector-receiver refrigeration circuit with valve
US-2019178541-A1 · Jun 13, 2019 · US
Centrifugal air separators
US-10315158-B2 · Jun 11, 2019 · US
Sensor assembly
US-2019154799-A1 · May 23, 2019 · US
Para-Orthohydrogen Conversion Using a Vortex Tube
US-2019092635-A1 · Mar 28, 2019 · US
Vortex tube cooler
US-10151515-B2 · Dec 11, 2018 · US
Temperature control device and process control apparatus including a temperature control device
US-2018347865-A1 · Dec 6, 2018 · US
Field instrument temperature apparatus and related methods
US-2018320935-A1 · Nov 8, 2018 · US
System and method for harvesting energy down-hole from an isothermal segment of a wellbore
US-10115880-B2 · Oct 30, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F25B9/04?
- CPC F25B9/04 is the Cooperative Patent Classification code for “using vortex effect.”
- How many patents are filed under CPC F25B9/04 (using vortex effect)?
- Our database includes 97 publications tagged with this CPC code.
- Is patent activity under CPC F25B9/04 growing?
- Publication counts under this code: 4 in 2024 vs 3 in 2025 (latest complete years).