F24F 13/02
Ducting arrangements
F24F13/02 (Ducting arrangements) appears on 2,789 US grants and 2,750 published applications in this corpus.
Search patents in F24F- Granted patents
- 2,789
- Published applications
- 2,750
- Assignees
- 1,336
- Inventors
- 5,448
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 32 | 0 |
| 1977 | 27 | 0 |
| 1978 | 20 | 0 |
| 1979 | 19 | 0 |
| 1980 | 22 | 0 |
| 1981 | 26 | 0 |
| 1982 | 20 | 0 |
| 1983 | 22 | 0 |
| 1984 | 20 | 0 |
| 1985 | 36 | 0 |
| 1986 | 27 | 0 |
| 1987 | 28 | 0 |
| 1988 | 19 | 0 |
| 1989 | 36 | 0 |
| 1990 | 22 | 0 |
| 1991 | 30 | 0 |
| 1992 | 45 | 0 |
| 1993 | 31 | 0 |
| 1994 | 38 | 0 |
| 1995 | 43 | 0 |
| 1996 | 42 | 0 |
| 1997 | 38 | 0 |
| 1998 | 61 | 0 |
| 1999 | 55 | 0 |
| 2000 | 50 | 0 |
| 2001 | 60 | 12 |
| 2002 | 51 | 48 |
| 2003 | 46 | 44 |
| 2004 | 36 | 64 |
| 2005 | 39 | 55 |
| 2006 | 34 | 67 |
| 2007 | 21 | 47 |
| 2008 | 19 | 87 |
| 2009 | 29 | 71 |
| 2010 | 36 | 95 |
| 2011 | 35 | 72 |
| 2012 | 34 | 87 |
| 2013 | 43 | 91 |
| 2014 | 55 | 111 |
| 2015 | 76 | 107 |
| 2016 | 92 | 126 |
| 2017 | 101 | 123 |
| 2018 | 68 | 139 |
| 2019 | 139 | 178 |
| 2020 | 126 | 193 |
| 2021 | 118 | 198 |
| 2022 | 170 | 224 |
| 2023 | 182 | 148 |
| 2024 | 159 | 165 |
| 2025 | 140 | 121 |
| 2026 | 71 | 77 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F24F 13/06Outlets for directing or distributing air into rooms or spaces1,378
- F24F 13/0209Characterised by their connecting means465
- F24F 13/0263Insulation for air ducts258
- F24F 13/0245Manufacturing or assembly of air ducts229
- F24F 13/0218Flexible soft ducts212
- F24F 13/0254Characterised by their mounting means208
- F24F 13/04Air-mixing units131
- F24F 13/0281Multilayer duct108
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Most cited
By later US patents
- Induction nozzle and arrangement388US 6,004,204 ALuminis Pty. Ltd. · 1999
- Raised floor air handling unit154US 6,616,524 B22003
- Combination heater-light-ventilator unit150US 4,681,024 AFasco Industries, Inc. · 1987
- Lighting and ventilating apparatus and method148US 7,175,309 B2Broan-NuTone LLC · 2007
- Solid state light fixture with cooling system with heat rejection management118US 8,651,704 B1Musco Corporation · 2014