F04D 29/263
Mounting fan or blower rotors on shafts
Official title: {mounting fan or blower rotors on shafts}
F04D29/263 (Mounting fan or blower rotors on shafts) appears on 239 US grants and 267 published applications in this corpus.
Search patents in F04D- Granted patents
- 239
- Published applications
- 267
- Assignees
- 182
- Inventors
- 634
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 3 | 0 |
| 1980 | 2 | 0 |
| 1981 | 3 | 0 |
| 1982 | 3 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 3 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 4 | 0 |
| 1991 | 2 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 5 | 0 |
| 2001 | 6 | 0 |
| 2002 | 3 | 4 |
| 2003 | 4 | 9 |
| 2004 | 4 | 4 |
| 2005 | 4 | 7 |
| 2006 | 4 | 6 |
| 2007 | 1 | 3 |
| 2008 | 4 | 9 |
| 2009 | 2 | 4 |
| 2010 | 4 | 5 |
| 2011 | 2 | 7 |
| 2012 | 7 | 12 |
| 2013 | 2 | 10 |
| 2014 | 3 | 12 |
| 2015 | 6 | 15 |
| 2016 | 7 | 9 |
| 2017 | 9 | 19 |
| 2018 | 10 | 14 |
| 2019 | 17 | 32 |
| 2020 | 18 | 17 |
| 2021 | 19 | 18 |
| 2022 | 20 | 19 |
| 2023 | 17 | 9 |
| 2024 | 11 | 12 |
| 2025 | 8 | 7 |
| 2026 | 5 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Portable fan25 Aug 2026US 12,716,421 B2Milwaukee Electric Tool Corporation
- Fan assembly11 Aug 2026US 12,704,129 B2Illinois Tool Works Inc.
- Propeller assembly7 Jul 2026US 12,674,393 B1PARTS KOREA Co., Ltd
- Axial, diagonal or radial fan having a hub contour28 Apr 2026US 12,612,924 B2Ziehl-Abegg SE
- Centrifugal fan and fixing method7 Apr 2026US 12,595,808 B1Mabuchi Motor Co., Ltd.
- Portable fan30 Jul 2026US 2026/0218716 A1Shenzhen Jisu Technology Co., Ltd
- Aircraft and a power unit thereof30 Jul 2026US 2026/0218725 A1
- Detachable fan assembly30 Apr 2026US 2026/0117798 A1Purple Cloud Development Pte. Ltd.
- Centrifugal fan and fixing method9 Apr 2026US 2026/0098545 A1Mabuchi Motor Co., Ltd.
- Blower with improved fan and motor design4 Dec 2025US 2025/0369446 A1Milwaukee Electric Tool Corporation
Most cited
By later US patents
- Twist-lock attachment system for a cooling fan and motor57US 5,871,335 ASiemens Electric Limited · 1999
- Fan and fan drive and assembly thereof37US 5,593,283 AEaton Corporation · 1997
- Integrated fan assembly with variable pitch blades36US 6,109,871 AHorton, Inc. · 2000
- Self-ventilated electrical machine with arrangement to facilitate assembly and dismantling of the ventilator disk25US 5,134,329 ASiemens Aktiengesellschaft · 1992
- Connecting structure for a hub and fan blade23US 4,245,960 AAir Drive, Inc. · 1981