F04D 25/0633
Details of the magnetic circuit
Official title: {Details of the magnetic circuit}
F04D25/0633 (Details of the magnetic circuit) appears on 109 US grants and 141 published applications in this corpus.
Search patents in F04D- Granted patents
- 109
- Published applications
- 141
- Assignees
- 67
- Inventors
- 258
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1999 | 3 | 0 |
| 2000 | 3 | 0 |
| 2001 | 3 | 2 |
| 2002 | 2 | 3 |
| 2003 | 3 | 2 |
| 2004 | 2 | 3 |
| 2005 | 3 | 6 |
| 2006 | 1 | 1 |
| 2007 | 1 | 5 |
| 2008 | 2 | 11 |
| 2009 | 2 | 5 |
| 2010 | 5 | 11 |
| 2011 | 7 | 5 |
| 2012 | 8 | 6 |
| 2013 | 3 | 7 |
| 2014 | 1 | 3 |
| 2015 | 4 | 9 |
| 2016 | 4 | 3 |
| 2017 | 3 | 4 |
| 2018 | 4 | 4 |
| 2019 | 2 | 6 |
| 2020 | 4 | 6 |
| 2021 | 8 | 9 |
| 2022 | 9 | 10 |
| 2023 | 8 | 8 |
| 2024 | 8 | 7 |
| 2025 | 4 | 3 |
| 2026 | 2 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Axial fan motor28 Jul 2026US 12,692,875 B2MINEBEA MITSUMI Inc.
- Ceiling fan with blade hub24 Mar 2026US 12,584,499 B2Hunter Fan Company
- Axial fan motor17 Jun 2025US 12,331,754 B2MINEBEA MITSUMI Inc.
- Motor and fan device11 Mar 2025US 12,247,571 B2Mitsuba Corporation
- Ceiling fan with blade hub25 Feb 2025US 12,234,839 B2Hunter Fan Company
- Ceiling fan with blade hub19 Feb 2026US 2026/0049619 A1Hunter Fan Company
- Cooling fan with data display function5 Feb 2026US 2026/0040481 A1Guangzhou Juchuang Electronic Technology Co., Ltd.
- Motor assembly for driving a pump with a matrix converter13 Nov 2025US 2025/0350162 A1Vidar Corporation
- Axial fan motor2 Oct 2025US 2025/0305514 A1MINEBEA MITSUMI Inc.
- Ceiling fan with blade hub8 May 2025US 2025/0146511 A1Hunter Fan Company
Most cited
By later US patents
- Brushless DC motor fan driven by an AC power source108US 6,278,248 B1Sunonwealth Electric Machine Industry Co., Ltd. · 2001
- Low profile motor83US 6,509,704 B1Comair Rotron, Inc. · 2003
- Low profile motor80US 6,841,957 B2Conair Rotron, Inc. · 2005
- Rotation drive device and centrifugal pump apparatus employing same75US 9,850,906 B2Tc1 LLC · 2017
- Brushless DC ring motor cooling system44US 6,600,249 B2Horton, Inc. · 2003