F24F 11/34
By opening air passages
Official title: by opening air passages
F24F11/34 (By opening air passages) appears on 80 US grants and 82 published applications in this corpus.
Search patents in F24F- Granted patents
- 80
- Published applications
- 82
- Assignees
- 37
- Inventors
- 118
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 1 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 1 |
| 2005 | 0 | 1 |
| 2006 | 0 | 2 |
| 2007 | 2 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 3 |
| 2013 | 1 | 5 |
| 2014 | 0 | 2 |
| 2015 | 7 | 20 |
| 2016 | 6 | 6 |
| 2017 | 9 | 10 |
| 2018 | 11 | 7 |
| 2019 | 7 | 5 |
| 2020 | 8 | 6 |
| 2021 | 3 | 3 |
| 2022 | 4 | 1 |
| 2023 | 2 | 2 |
| 2024 | 3 | 0 |
| 2025 | 0 | 3 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Multi-component whole house fan system7 Feb 2023US 11,573,021 B2Airscape, Inc.
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- Control panel of a fire protection system having smoke control capabilites9 Oct 2025US 2025/0312638 A1Siemens Industry, Inc.
- Ventilation system module, building comprising such and method for installing the same26 Jun 2025US 2025/0207794 A1ÅF-Infrastructure AB (AFRY)
- Indoor air pollution prevention system30 Jan 2025US 2025/0035334 A1Microjet Technology Co., Ltd.
- Intake-type smoke removal system14 Dec 2023US 2023/0400203 A1
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