H02K 5/18
With ribs or fins for improving heat transfer
Official title: with ribs or fins for improving heat transfer
H02K5/18 (With ribs or fins for improving heat transfer) appears on 659 US grants and 832 published applications in this corpus.
Search patents in H02K- Granted patents
- 659
- Published applications
- 832
- Assignees
- 355
- Inventors
- 1,693
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 4 | 0 |
| 1998 | 1 | 0 |
| 1999 | 6 | 0 |
| 2000 | 3 | 0 |
| 2001 | 9 | 2 |
| 2002 | 5 | 3 |
| 2003 | 2 | 7 |
| 2004 | 5 | 4 |
| 2005 | 3 | 10 |
| 2006 | 10 | 15 |
| 2007 | 6 | 11 |
| 2008 | 5 | 12 |
| 2009 | 8 | 10 |
| 2010 | 8 | 10 |
| 2011 | 9 | 26 |
| 2012 | 7 | 20 |
| 2013 | 19 | 28 |
| 2014 | 9 | 28 |
| 2015 | 25 | 43 |
| 2016 | 16 | 51 |
| 2017 | 27 | 55 |
| 2018 | 41 | 45 |
| 2019 | 57 | 49 |
| 2020 | 60 | 70 |
| 2021 | 41 | 41 |
| 2022 | 45 | 81 |
| 2023 | 44 | 47 |
| 2024 | 74 | 79 |
| 2025 | 60 | 56 |
| 2026 | 28 | 29 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Device for supplying pressurised air to a fuel cell cathode, with optimised cooling8 Sep 2026US 12,731,800 B2Liebherr-Aerospace Toulouse SAS
- Electric drive assembly with planetary gear reduction8 Sep 2026US 12,732,069 B1Hydro-Gear Limited Partnership
- Noise-optimized centrifugal pump25 Aug 2026US 12,716,428 B2KSB SE & Co. KGaA
- Hair dryer and electric motor18 Aug 2026US 12,708,186 B2Ya-Man Ltd.
- Systems and methods for tilt propellers with tilt actuator gearbox and integrated inverter18 Aug 2026US 12,709,379 B2Archer Aviation Inc.
- Control enclosures including internal grooves and motor assemblies including same8 Oct 2026US 2026/0312457 A1
- Electric motor having a stator housing17 Sep 2026US 2026/0280378 A1Sew-Eurodrive GmbH & Co. KG
- Drive housing for an electric bicycle having a rib structure that forms a ventilation assembly and/or cooling air channels3 Sep 2026US 2026/0261177 A1Brose Antriebstechnik GmbH & Co. Kommanditgesellschaft, Berlin
- Systems and methods for tilt propellers with tilt actuator gearbox and integrated inverter27 Aug 2026US 2026/0249978 A1Archer Aviation Inc.
- Electric compressor device13 Aug 2026US 2026/0238071 A1Mitsubishi Heavy Industries Engine & Turbocharger, Ltd.
Most cited
By later US patents
- Motor-driven fan, particularly for a motor vehicle heat exchanger163US 6,384,494 B1Gate S.R.L. · 2002
- Electric machine98US 6,720,688 B12004
- Ceiling fan motors72US 5,883,449 AHunter Fan Company · 1999
- Slotless, brushless, large air-gap electric motor67US 5,619,085 A1997
- Lubricating device for a vehicle motor65US 5,156,579 AAisin Aw Co., Ltd. · 1992