F04D 19/002
Axial flow fans
Official title: {Axial flow fans}
F04D19/002 (Axial flow fans) appears on 1,545 US grants and 2,069 published applications in this corpus.
Search patents in F04D- Granted patents
- 1,545
- Published applications
- 2,069
- Assignees
- 741
- Inventors
- 3,565
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 3 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 3 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 7 | 0 |
| 1997 | 4 | 0 |
| 1998 | 7 | 0 |
| 1999 | 6 | 0 |
| 2000 | 4 | 0 |
| 2001 | 9 | 0 |
| 2002 | 5 | 6 |
| 2003 | 6 | 7 |
| 2004 | 3 | 3 |
| 2005 | 1 | 5 |
| 2006 | 8 | 8 |
| 2007 | 4 | 8 |
| 2008 | 3 | 12 |
| 2009 | 2 | 9 |
| 2010 | 5 | 8 |
| 2011 | 9 | 21 |
| 2012 | 7 | 29 |
| 2013 | 13 | 41 |
| 2014 | 23 | 72 |
| 2015 | 30 | 170 |
| 2016 | 35 | 153 |
| 2017 | 88 | 138 |
| 2018 | 123 | 166 |
| 2019 | 148 | 144 |
| 2020 | 141 | 149 |
| 2021 | 127 | 134 |
| 2022 | 151 | 150 |
| 2023 | 148 | 151 |
| 2024 | 156 | 163 |
| 2025 | 159 | 164 |
| 2026 | 87 | 158 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Aircraft with an unducted fan propulsor6 Oct 2026US 12,752,923 B2General Electric Company
- Fan6 Oct 2026US 12,753,768 B2Levitronix LLC
- Axial fan assembly including an intermediate shroud6 Oct 2026US 12,753,773 B2Regal Beloit America, Inc.
- Mounting device for a fan unit6 Oct 2026US 12,753,777 B2Spectronik Pte. Ltd.
- Handheld camera fan6 Oct 2026US 12,753,778 B1Shenzhen Xinyifang International Trade Co., Ltd.
- Axial fan comprising endplates at the tip of the blades24 Sep 2026US 2026/0286965 A1R.E.M. Patents S.R.L.
- Fan assembly24 Sep 2026US 2026/0286976 A1Milwaukee Electric Tool Corporation
- Blower24 Sep 2026US 2026/0286981 A1
- Portable fan17 Sep 2026US 2026/0275992 A1Shenzhen Jisu Technology Co., Ltd
- Fan module17 Sep 2026US 2026/0276003 A1Shenzhen Jisu Technology Co., Ltd
Most cited
By later US patents
- Fan shroud with integral air supply124US 5,881,685 ABoard of Trustees operating Michigan State University · 1999
- Cooling fan shroud121US 5,762,034 ABoard of Trustees operating Michigan State University · 1998
- Hand-held fan and object holder112US 7,775,848 B1Candyrific, LLC · 2010
- Portable, evaporative cooling unit having a self-contained water supply110US 6,789,787 B22004
- Housing with recirculation control for use with banded axial-flow fans95US 5,489,186 AAirflow Research and Manufacturing Corporation · 1996