F04D 25/066
Linear motors
Official title: {Linear Motors}
F04D25/066 (Linear motors) appears on 89 US grants and 95 published applications in this corpus.
Search patents in F04D- Granted patents
- 89
- Published applications
- 95
- Assignees
- 67
- Inventors
- 193
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 3 | 0 |
| 2002 | 5 | 7 |
| 2003 | 6 | 6 |
| 2004 | 3 | 4 |
| 2005 | 2 | 6 |
| 2006 | 2 | 5 |
| 2007 | 2 | 2 |
| 2008 | 2 | 2 |
| 2009 | 2 | 4 |
| 2010 | 0 | 4 |
| 2011 | 1 | 3 |
| 2012 | 2 | 2 |
| 2013 | 3 | 0 |
| 2014 | 0 | 0 |
| 2015 | 2 | 0 |
| 2016 | 3 | 5 |
| 2017 | 0 | 4 |
| 2018 | 4 | 5 |
| 2019 | 5 | 5 |
| 2020 | 7 | 9 |
| 2021 | 5 | 5 |
| 2022 | 6 | 4 |
| 2023 | 4 | 4 |
| 2024 | 5 | 5 |
| 2025 | 2 | 3 |
| 2026 | 4 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Radiator system16 Jun 2026US 12,654,543 B2
- Gas propulsion thrust device5 May 2026US 12,618,418 B1
- Axial direct drive sealless pump or turbine with deformation-resistant cover plate17 Mar 2026US 12,577,954 B2Flowserve Pte. Ltd.
- Ventilation system with integrated drive system3 Mar 2026US 12,565,894 B2Broan-NuTone LLC
- Media gap motor for a turbocharger24 Jun 2025US 12,341,377 B2G&L Innotec GmbH
- Internal circulation heat dissipation fan2 Jul 2026US 2026/0185538 A1Delta Electronics, Inc.
- Media gap motor, fuel cell system and use23 Oct 2025US 2025/0327458 A1G&L Innotec GmbH
- Axial direct drive sealless pump or turbine with deformation-resistant cover plate10 Jul 2025US 2025/0223968 A1Flowserve Pte. Ltd.
- Lift off speed detection29 May 2025US 2025/0172430 A1Garrett Transportation I Inc.
- Radiator System12 Sep 2024US 2024/0300317 A1
Most cited
By later US patents
- Fan unit for an internal combustion engine of automobile vehicle84US 4,459,087 AAciers et Outillage Peugeot · 1984
- Fan with magnetic blades57US 6,194,798 B1Air Concepts, Inc. · 2001
- Electrically driven, circumferentially supported fan56US 4,962,734 APACCAR Inc · 1990
- Axial flow type cooling fan with shrouded blades56US 7,192,258 B2Industrial Technology Research Institute · 2007
- Simple brushless DC fan motor with reversing field50US 4,553,075 ARotron Incorporated · 1985