F24F 13/142
Using pivoting blades with intersecting axles
Official title: {using pivoting blades with intersecting axles}
F24F13/142 (Using pivoting blades with intersecting axles) appears on 25 US grants and 30 published applications in this corpus.
Search patents in F24F- Granted patents
- 25
- Published applications
- 30
- Assignees
- 25
- Inventors
- 76
- Latest grant
- 6 May 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 1 | 1 |
| 2007 | 1 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 1 | 0 |
| 2017 | 0 | 1 |
| 2018 | 0 | 2 |
| 2019 | 0 | 8 |
| 2020 | 3 | 2 |
| 2021 | 1 | 4 |
| 2022 | 4 | 4 |
| 2023 | 4 | 2 |
| 2024 | 2 | 1 |
| 2025 | 1 | 2 |
By publication year. Applications have been published since 2001.
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Most cited
By later US patents
- Whole house ventilating method, system and appartus24US 4,779,518 ALeslie-Locke, Inc. · 1988
- Fresh air flow modulation device19US 5,674,125 AAmerican Standard Inc. · 1997
- Fresh air flor modulation device18US 5,741,180 AAmerican Standard Inc. · 1998
- Reverse flow preventing device and electronic apparatus18US 7,025,086 B2Fujitsu Limited · 2006
- Manually adjustable underfloor airflow damper assembly13US 6,231,438 B1Gebruder Trox GmbH · 2001