F24F 7/04
Ventilation: with ducting systems
Official title: with ducting systems {, e.g. by double walls; with natural circulation (F24F7/02 takes precedence)}
F24F7/04 (Ventilation: with ducting systems) appears on 1,201 US grants and 1,398 published applications in this corpus.
Search patents in F24F- Granted patents
- 1,201
- Published applications
- 1,398
- Assignees
- 708
- Inventors
- 2,760
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 17 | 0 |
| 1977 | 13 | 0 |
| 1978 | 9 | 0 |
| 1979 | 8 | 0 |
| 1980 | 8 | 0 |
| 1981 | 11 | 0 |
| 1982 | 7 | 0 |
| 1983 | 9 | 0 |
| 1984 | 8 | 0 |
| 1985 | 18 | 0 |
| 1986 | 11 | 0 |
| 1987 | 8 | 0 |
| 1988 | 13 | 0 |
| 1989 | 12 | 0 |
| 1990 | 12 | 0 |
| 1991 | 16 | 0 |
| 1992 | 17 | 0 |
| 1993 | 12 | 0 |
| 1994 | 20 | 0 |
| 1995 | 10 | 0 |
| 1996 | 10 | 0 |
| 1997 | 6 | 0 |
| 1998 | 15 | 0 |
| 1999 | 9 | 0 |
| 2000 | 4 | 0 |
| 2001 | 7 | 2 |
| 2002 | 6 | 7 |
| 2003 | 13 | 14 |
| 2004 | 8 | 15 |
| 2005 | 8 | 17 |
| 2006 | 7 | 20 |
| 2007 | 7 | 16 |
| 2008 | 12 | 23 |
| 2009 | 10 | 16 |
| 2010 | 3 | 33 |
| 2011 | 12 | 32 |
| 2012 | 15 | 44 |
| 2013 | 19 | 48 |
| 2014 | 28 | 71 |
| 2015 | 44 | 85 |
| 2016 | 36 | 57 |
| 2017 | 65 | 71 |
| 2018 | 48 | 70 |
| 2019 | 76 | 92 |
| 2020 | 72 | 103 |
| 2021 | 66 | 105 |
| 2022 | 71 | 127 |
| 2023 | 84 | 90 |
| 2024 | 85 | 109 |
| 2025 | 68 | 71 |
| 2026 | 48 | 60 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Circulating air module and circulating air module system29 Sep 2026US 12,747,870 B2Envola GmbH
- Window air conditioner22 Sep 2026US 12,742,557 B2Gd Midea Air-Conditioning Equipment Co., Ltd.
- Temperature chamber and environment forming device22 Sep 2026US 12,742,561 B2Espec Corp.
- Ventilation apparatus15 Sep 2026US 12,736,253 B2LG Electronics Inc.
- System and method using connected dampers for dehumidifying air21 Jul 2026US 12,687,313 B2Research Products Corporation
- Ceiling-mounted room cooling exhaust fan assembly8 Oct 2026US 2026/0309345 A1Solatube International, Inc.
- Fresh air washing machine1 Oct 2026US 2026/0297838 A1Haier Smart Home Co., Ltd.
- Device for Standardizing Temperature Humidity in an Enclosed Space24 Sep 2026US 2026/0287190 A1Raan Global, Sl.
- Duct ventilation fan24 Sep 2026US 2026/0287191 A1Mitsubishi Electric Corporation
- Ventilation apparatus24 Sep 2026US 2026/0287204 A1Samsung Electronics Co., Ltd.
Most cited
By later US patents
- Method and apparatus for attachment and evacuation220US 10,751,768 B2Buffalo Filter LLC · 2020
- Raised floor air handling unit154US 6,616,524 B22003
- Ducted exhaust equipment enclosure146US 7,804,685 B2Chatsworth Products, Inc. · 2010
- Modular floor sub-structure for the operational support of computer systems129US 5,467,609 ALiebert Corporation · 1995
- Ducted exhaust equipment enclosure124US 8,040,673 B2Chatsworth Products, Inc. · 2011