F24F 1/0022
Centrifugal or radial fans
F24F1/0022 (Centrifugal or radial fans) appears on 205 US grants and 265 published applications in this corpus.
Search patents in F24F- Granted patents
- 205
- Published applications
- 265
- Assignees
- 86
- Inventors
- 638
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 3 | 0 |
| 2001 | 1 | 1 |
| 2002 | 2 | 2 |
| 2003 | 1 | 0 |
| 2004 | 0 | 10 |
| 2005 | 4 | 7 |
| 2006 | 6 | 3 |
| 2007 | 7 | 5 |
| 2008 | 2 | 9 |
| 2009 | 2 | 9 |
| 2010 | 1 | 6 |
| 2011 | 3 | 3 |
| 2012 | 7 | 5 |
| 2013 | 3 | 5 |
| 2014 | 1 | 8 |
| 2015 | 0 | 4 |
| 2016 | 11 | 21 |
| 2017 | 8 | 17 |
| 2018 | 14 | 22 |
| 2019 | 24 | 10 |
| 2020 | 11 | 19 |
| 2021 | 13 | 15 |
| 2022 | 12 | 20 |
| 2023 | 9 | 24 |
| 2024 | 21 | 19 |
| 2025 | 18 | 16 |
| 2026 | 10 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Circulating air module and circulating air module system29 Sep 2026US 12,747,870 B2Envola GmbH
- Indoor unit of air conditioner29 Sep 2026US 12,747,871 B2Fujitsu General Limited
- Ceiling-type air conditioner18 Aug 2026US 12,710,182 B2Samsung Electronics Co., Ltd.
- Air management system for a heating, ventilation, and air-conditioning system23 Jun 2026US 12,663,167 B2Goodman Global Group, Inc.
- Portable air conditioner9 Jun 2026US 12,650,241 B2Hephzibah Co., Ltd.
- Air conditioner27 Aug 2026US 2026/0251345 A1Qingdao Hisense Hitachi Air-Conditioning Systems Co., Ltd.
- Controller Mounting Bracket for Heating and/or Cooling Appliances25 Jun 2026US 2026/0177276 A1Rheem Manufacturing Company
- Axial gap-type motor, blower, and air conditioner16 Apr 2026US 2026/0106512 A1Daikin Industries, Ltd.
- Fan and air conditioner26 Mar 2026US 2026/0085689 A1Daikin Industries, Ltd.
- Make-up air heating system5 Mar 2026US 2026/0063310 A1Hybrid Light Solutions, LLC
Most cited
By later US patents
- Air conditioner66US 7,185,504 B2Daikin Industries, Ltd. · 2007
- Ceiling mounted apparatus for heating and cooling47US 6,250,373 B1Carrier Corporation · 2001
- Fan assembly with heat sink45US 5,297,617 A1994
- Refrigerant coil apparatus and associated condensate drain pan structure44US 5,207,074 ARheem Manufacturing Company · 1993
- Air conditioner40US 8,256,241 B2Mitsubishi Electric Corporation · 2012