F25B 2400/0425
For internal heat exchangers
Official title: for internal heat exchangers
F25B2400/0425 (For internal heat exchangers) appears on 29 US grants and 39 published applications in this corpus.
Search patents in F25B- Granted patents
- 29
- Published applications
- 39
- Assignees
- 33
- Inventors
- 112
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 2 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 2 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 2 |
| 2015 | 2 | 0 |
| 2016 | 1 | 3 |
| 2017 | 1 | 2 |
| 2018 | 2 | 0 |
| 2019 | 2 | 2 |
| 2020 | 0 | 2 |
| 2021 | 2 | 6 |
| 2022 | 1 | 8 |
| 2023 | 3 | 2 |
| 2024 | 5 | 3 |
| 2025 | 2 | 4 |
| 2026 | 3 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Obstruction detection for a heat pump water heater system16 Jun 2026US 12,656,035 B2Bradford White Corporation
- Integrated refrigerant charge collector for heat pumps24 Mar 2026US 12,584,664 B2Rheem Manufacturing Company
- High-temperature, dual rail heat pump cycle for high performance at high-temperature lift and range6 Jan 2026US 12,516,855 B2Supercritical Storage Company, Inc.
- Refrigerant cycle system23 Sep 2025US 12,422,175 B2Daikin Industries, Ltd.
- Reversible heat pump27 May 2025US 12,313,307 B2Trane International Inc.
- Heat source apparatus and refrigeration cycle apparatus1 Jan 2026US 2026/0002708 A1Daikin Europe N.V.
- Obstruction detection for a heat pump water heater system27 Nov 2025US 2025/0362067 A1Bradford White Corporation
- Refrigeration circuit25 Sep 2025US 2025/0297786 A1Tewis Smart Systems S.L.U.
- Leakage detection system of reliquefaction system for ship24 Jul 2025US 2025/0237430 A1Hanwha Ocean Co., Ltd.
- Heat exchange apparatus5 Jun 2025US 2025/0180263 A1Onda Corporation
Most cited
By later US patents
- Method and device for high side pressure regulation in transcritical vapor compression cycle91US 5,245,836 ASinvent AS · 1993
- Supercritical refrigerating apparatus28US 6,105,386 ADenso Corporation · 2000
- Heat pump refrigerant loop arrangements12US 11,560,042 B2Ford Global Technologies, LLC · 2023
- Methods of freezeout prevention and temperature control for very low temperature mixed refrigerant systems10US 7,478,540 B2Brooks Automation, Inc. · 2009
- Evaporator for cooling units7US 5,524,455 ANippondenso Co., Ltd. · 1996