Dilution refrigeration device and method
US-12553646-B2 · Feb 17, 2026 · US
using 3He-4He dilution · Cooperative Patent Classification (CPC)
Engines, pumps, lighting, heating, and mechanical systems.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | F25B9/12 |
| Official title | using 3He-4He dilution |
| Display label | using 3He-4He dilution |
| Total patents | 58 |
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2016 | 1 |
| 2017 | 4 |
| 2018 | 3 |
| 2019 | 3 |
| 2020 | 5 |
| 2021 | 6 |
| 2022 | 7 |
| 2023 | 8 |
| 2024 | 8 |
| 2025 | 10 |
| 2026 | 3 |
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
US-12553646-B2 · Feb 17, 2026 · US
US-12548694-B2 · Feb 10, 2026 · US
US-2026009565-A1 · Jan 8, 2026 · US
US-12474750-B2 · Nov 18, 2025 · US
US-2025271181-A1 · Aug 28, 2025 · US
US-2025191815-A1 · Jun 12, 2025 · US
US-12320557-B2 · Jun 3, 2025 · US
US-2025116432-A1 · Apr 10, 2025 · US
US-2025116433-A1 · Apr 10, 2025 · US
US-2025102193-A1 · Mar 27, 2025 · US
US-12247774-B2 · Mar 11, 2025 · US
US-12204989-B2 · Jan 21, 2025 · US
US-2025003643-A1 · Jan 2, 2025 · US
US-2024353904-A1 · Oct 24, 2024 · US
US-2024344743-A1 · Oct 17, 2024 · US
US-12020115-B2 · Jun 25, 2024 · US
US-2024191913-A1 · Jun 13, 2024 · US
US-2024167739-A1 · May 23, 2024 · US
US-11971141-B2 · Apr 30, 2024 · US
US-2024093916-A1 · Mar 21, 2024 · US
Answers are generated from the same data shown on this page.