F04D 25/0653
The motor having a plane air gap
Official title: {the motor having a plane air gap, e.g. disc-type}
F04D25/0653 (The motor having a plane air gap) appears on 113 US grants and 129 published applications in this corpus.
Search patents in F04D- Granted patents
- 113
- Published applications
- 129
- Assignees
- 74
- Inventors
- 274
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 3 | 0 |
| 2001 | 3 | 0 |
| 2002 | 3 | 4 |
| 2003 | 1 | 3 |
| 2004 | 2 | 4 |
| 2005 | 1 | 3 |
| 2006 | 4 | 1 |
| 2007 | 2 | 9 |
| 2008 | 2 | 3 |
| 2009 | 4 | 1 |
| 2010 | 3 | 7 |
| 2011 | 0 | 5 |
| 2012 | 4 | 3 |
| 2013 | 3 | 8 |
| 2014 | 2 | 9 |
| 2015 | 6 | 8 |
| 2016 | 1 | 6 |
| 2017 | 7 | 3 |
| 2018 | 6 | 5 |
| 2019 | 6 | 11 |
| 2020 | 7 | 3 |
| 2021 | 5 | 5 |
| 2022 | 6 | 7 |
| 2023 | 4 | 5 |
| 2024 | 5 | 10 |
| 2025 | 5 | 2 |
| 2026 | 3 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Motor assembly for an appliance such as a vacuum cleaner and a vacuum cleaner having same15 Sep 2026US 12,736,058 B2Omachron Intellectual Property Inc.
- Fan for an automatic dispensing device10 Mar 2026US 12,571,398 B2Reckitt & Colman (Overseas) Hygiene Home Limited
- Geared air cycle machine fan for aircraft systems17 Feb 2026US 12,553,445 B2Hamilton Sundstrand Corporation
- Motor incorporating magnetic bearings2 Sep 2025US 12,404,029 B2Hamilton Sundstrand Corporation
- Fan and motor assembly for an appliance such as a vacuum cleaner and a vacuum cleaner having same10 Jun 2025US 12,326,151 B2Omachron Intellectual Property Inc.
- Retrofit fan assembly7 May 2026US 2026/0126054 A1Greenheck Fan Corporation
- Liquid cooling head5 Mar 2026US 2026/0068075 A1Cooler Master Co., Ltd.
- Magnetic rotor apparatus for a side channel compressor for a fuel cell system, side channel compressor and method of manufacturing a magnetic rotor apparatus for a side channel compressor for a fuel cell system12 Feb 2026US 2026/0045841 A1Robert Bosch GmbH
- Magnetic rotor apparatus for a side channel compressor for a fuel cell system, side channel compressor, and a method for manufacturing a magnetic rotor apparatus for a side channel compressor for a fuel cell system1 Jan 2026US 2026/0005268 A1Robert Bosch GmbH
- Motor assembly for an appliance such as a vacuum cleaner and a vacuum cleaner having same25 Sep 2025US 2025/0297613 A1Omachron Intellectual Property Inc.
Most cited
By later US patents
- Compact miniature fan114US 4,164,690 A1979
- Axially compact small fan65US 5,176,509 APapst-Motoren GmbH & Co. KG · 1993
- Brushless DC electric motor60US 7,112,910 B2Rotys Inc. · 2006
- Motor-assisted turbochargers for internal combustion engines58US 6,032,466 ATurbodyne Systems, Inc. · 2000
- Motor-generator assisted turbocharging systems for use with internal combustion engines and control method therefor56US 5,906,098 ATurbodyne Systems, Inc. · 1999