F04D 29/4253
With axial entry and discharge
Official title: {with axial entry and discharge}
F04D29/4253 (With axial entry and discharge) appears on 109 US grants and 161 published applications in this corpus.
Search patents in F04D- Granted patents
- 109
- Published applications
- 161
- Assignees
- 81
- Inventors
- 357
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 2 |
| 2007 | 1 | 1 |
| 2008 | 0 | 1 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 1 | 1 |
| 2012 | 1 | 3 |
| 2013 | 1 | 4 |
| 2014 | 1 | 4 |
| 2015 | 2 | 5 |
| 2016 | 1 | 7 |
| 2017 | 6 | 5 |
| 2018 | 9 | 18 |
| 2019 | 5 | 17 |
| 2020 | 9 | 11 |
| 2021 | 9 | 14 |
| 2022 | 14 | 16 |
| 2023 | 7 | 19 |
| 2024 | 18 | 19 |
| 2025 | 15 | 8 |
| 2026 | 5 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Hoods for extracting cooking fumes, comprising first and second suction units18 Aug 2026US 12,710,181 B2Elica S.P.A.
- Efficient fan assembly7 Apr 2026US 12,595,806 B2Greenheck Fan Corporation
- Motor and cleaner comprising the same7 Apr 2026US 12,597,825 B2Samsung Electronics Co., Ltd.
- Blower24 Feb 2026US 12,560,174 B2Koki Holdings Co., Ltd.
- Fan assembly and vacuum cleaner having same27 Jan 2026US 12,532,995 B2Jiangsu Midea Cleaning Appliances Co., Ltd.
- Fan motor and cleaner having fan motor23 Jul 2026US 2026/0207018 A1LG Electronics Inc.
- Fan motor23 Jul 2026US 2026/0210365 A1LG Electronics Inc.
- Air conditioner blower with diffusers30 Apr 2026US 2026/0117791 A1Mitsubishi Electric US, Inc.
- Blower12 Feb 2026US 2026/0043415 A1Makita Corporation
- Blower unit for a suction device4 Dec 2025US 2025/0366684 A1BSH Hausgeräte GmbH
Most cited
By later US patents
- Compact low noise efficient blower for CPAP devices351US 7,866,944 B2ResMed Motor Technologies Inc. · 2011
- Radial upblast exhaust fan apparatus28US 4,806,076 AStrobic Air Corporation · 1989
- Air blower with flexible housing17US 4,997,342 A1991
- Compact low noise efficient blower for CPAP devices16US 8,267,648 B2ResMed Motor Technologies Inc. · 2012
- Single stage, axial symmetric blower and portable ventilator16US 9,861,774 B2ResMed Motor Technologies Inc. · 2018