F24F 1/26
Refrigerant piping
F24F1/26 (Refrigerant piping) appears on 334 US grants and 480 published applications in this corpus.
Search patents in F24F- Granted patents
- 334
- Published applications
- 480
- Assignees
- 118
- Inventors
- 1,013
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 4 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 5 | 0 |
| 2002 | 5 | 7 |
| 2003 | 1 | 0 |
| 2004 | 3 | 4 |
| 2005 | 3 | 11 |
| 2006 | 7 | 7 |
| 2007 | 3 | 2 |
| 2008 | 2 | 8 |
| 2009 | 1 | 7 |
| 2010 | 4 | 10 |
| 2011 | 3 | 14 |
| 2012 | 4 | 11 |
| 2013 | 3 | 9 |
| 2014 | 10 | 5 |
| 2015 | 6 | 18 |
| 2016 | 8 | 20 |
| 2017 | 13 | 20 |
| 2018 | 11 | 19 |
| 2019 | 17 | 33 |
| 2020 | 27 | 79 |
| 2021 | 27 | 57 |
| 2022 | 54 | 23 |
| 2023 | 31 | 26 |
| 2024 | 29 | 42 |
| 2025 | 23 | 28 |
| 2026 | 14 | 20 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Window-type air-conditioner8 Sep 2026US 12,729,864 B2Samsung Electronics Co., Ltd.
- Indoor unit and air conditioner25 Aug 2026US 12,716,596 B2Daikin Industries, Ltd.
- Air conditioning system25 Aug 2026US 12,716,624 B2Daikin Industries, Ltd.
- Heat exchanger and air-conditioning apparatus11 Aug 2026US 12,704,271 B2Mitsubishi Electric Corporation
- Corrosion resistant tube and method of manufacture21 Jul 2026US 12,687,252 B2Indiana Tube Corporation
- Outdoor machine and refrigeration cycle apparatus1 Oct 2026US 2026/0298488 A1Mitsubishi Electric Corporation
- System and method for heating and cooling24 Sep 2026US 2026/0287196 A1Daikin Industries, Ltd.
- Air conditioner outdoor unit and air conditioner10 Sep 2026US 2026/0266482 A1Gd Midea Air-Conditioning Equipment Co., Ltd.
- Air conditioner10 Sep 2026US 2026/0266489 A1Carrier Japan Corporation
- Outdoor unit for air conditioning and air conditioner20 Aug 2026US 2026/0243449 A1Carrier Japan Corporation
Most cited
By later US patents
- Quick-connect fluid coupling107US 4,900,065 ADLH Industries, Inc. · 1990
- Low obstruction window air conditioner60US 5,582,025 ASlant/Fin Corporation · 1996
- Air conditioning system58US 5,582,026 A1996
- Mounting assembly of a separate type air-conditioner28US 5,191,770 ASamsung Electronics Co., Ltd. · 1993
- High efficiency flipping window-bridge air conditioners and heat pumps26US 10,401,043 B22019