Parallel capillary expansion tube systems and methods
US-10488089-B2 · Nov 26, 2019 · US
Capillary tubes
Capillary tubes · 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 | F25B41/37 |
| Official title | Capillary tubes |
| Display label | Capillary tubes |
| Total patents | 172 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 10 |
| 2016 | 12 |
| 2017 | 14 |
| 2018 | 17 |
| 2019 | 22 |
| 2020 | 10 |
| 2021 | 20 |
| 2022 | 12 |
| 2023 | 19 |
| 2024 | 13 |
| 2025 | 20 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Refrigerator
US-2019226733-A1 · Jul 25, 2019 · US
Refrigerator
US-2019178559-A1 · Jun 13, 2019 · US
Refrigerator
US-10260796-B2 · Apr 16, 2019 · US
Air conditioner
US-2019049155-A1 · Feb 14, 2019 · US
Cooling device
US-10203139-B2 · Feb 12, 2019 · US
Single-circuit refrigerator
US-2019024956-A1 · Jan 24, 2019 · US
Air-conditioning apparatus
US-10161652-B2 · Dec 25, 2018 · US
Cooling device with compressor cabinet heater and a control method
US-10119734-B2 · Nov 6, 2018 · US
Refrigerator and method of controlling the same
US-10088216-B2 · Oct 2, 2018 · US
Refrigerator with a plurality of capillaries
US-10082326-B2 · Sep 25, 2018 · US
Liquid reservoir assembly for refrigerating system, refrigerating system having same and freezer
US-2018231285-A1 · Aug 16, 2018 · US
Refrigeration device comprising multiple storage chambers
US-2018231277-A1 · Aug 16, 2018 · US
Refrigerator
US-10041716-B2 · Aug 7, 2018 · US
Refrigerator appliance with a clear icemaker
US-2018209711-A1 · Jul 26, 2018 · US
Refrigerator appliance with a clear icemaker
US-2018209710-A1 · Jul 26, 2018 · US
Refrigeration device comprising a refrigerant circuit with a multi suction line
US-2018149404-A1 · May 31, 2018 · US
Portable instant cooling system with controlled temperature obtained through timed-release liquid or gaseous CO2 coolant for general refrigeration use in mobile and stationary containers
US-9976782-B1 · May 22, 2018 · US
Parallel capillary expansion tube systems and methods
US-2018094840-A1 · Apr 5, 2018 · US
Parallel capillary expansion tube systems and methods
US-2018094841-A1 · Apr 5, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F25B41/37?
- CPC F25B41/37 is the Cooperative Patent Classification code for “Capillary tubes.”
- How many patents are filed under CPC F25B41/37 (Capillary tubes)?
- Our database includes 172 publications tagged with this CPC code.
- Is patent activity under CPC F25B41/37 growing?
- Publication counts under this code: 13 in 2024 vs 20 in 2025 (latest complete years).