F24F 1/48
Characterised by air airflow
Official title: characterised by air airflow, e.g. inlet or outlet airflow
F24F1/48 (Characterised by air airflow) appears on 244 US grants and 312 published applications in this corpus.
Search patents in F24F- Granted patents
- 244
- Published applications
- 312
- Assignees
- 85
- Inventors
- 716
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 4 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 2 | 4 |
| 2003 | 2 | 5 |
| 2004 | 3 | 12 |
| 2005 | 6 | 11 |
| 2006 | 7 | 3 |
| 2007 | 8 | 6 |
| 2008 | 3 | 9 |
| 2009 | 3 | 16 |
| 2010 | 3 | 8 |
| 2011 | 7 | 9 |
| 2012 | 6 | 8 |
| 2013 | 3 | 4 |
| 2014 | 7 | 18 |
| 2015 | 4 | 17 |
| 2016 | 8 | 16 |
| 2017 | 14 | 20 |
| 2018 | 16 | 18 |
| 2019 | 17 | 25 |
| 2020 | 16 | 20 |
| 2021 | 22 | 21 |
| 2022 | 14 | 16 |
| 2023 | 14 | 6 |
| 2024 | 18 | 21 |
| 2025 | 12 | 13 |
| 2026 | 3 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Air conditioner outdoor unit and air conditioner11 Aug 2026US 12,704,273 B2Gd Midea Heating & Ventilating Equipment Co., Ltd.
- Multiple fan HVAC system with optimized fan location28 Apr 2026US 12,613,040 B2Goodman Manufacturing Company, L. P.
- Outdoor unit of air conditioner3 Mar 2026US 12,566,003 B2Samsung Electronics Co., Ltd.
- Cascade unit and refrigeration cycle apparatus11 Nov 2025US 12,467,661 B2Daikin Industries, Ltd.
- Device for exchanging thermal energy with ambient air and heat pump with a device of this type4 Nov 2025US 12,460,828 B2
- Air conditioner outdoor unit and air conditioner8 Oct 2026US 2026/0309343 A1Gd Midea Heating & Ventilating Equipment Co., Ltd.
- Improved aerator for an air-cooled refrigeration cycle arrangement23 Jul 2026US 2026/0210596 A1
- Air conditioner11 Jun 2026US 2026/0160433 A1Qingdao Hisense Hitachi Air-Conditioning Systems Co., Ltd.
- Outdoor unit of air conditioner11 Jun 2026US 2026/0160434 A1Samsung Electronics Co., Ltd.
- Air conditioner30 Apr 2026US 2026/0117992 A1Qingdao Hisense Hitachi Air-Conditioning Systems Co., Ltd.
Most cited
By later US patents
- Air conditioning system58US 5,582,026 A1996
- Outdoor heat exchanger section44US 4,723,419 AAmerican Standard Inc. · 1988
- Ventilating protective cover for top-discharge air conditioners43US 5,097,678 A1992
- Outdoor unit construction for an electric heat pump42US 4,470,271 AWestinghouse Electric Corp. · 1984
- Outdoor coil unit for heat pump41US 4,261,418 AWestinghouse Electric Corp. · 1981