H01F 27/10
Liquid cooling
H01F27/10 (Liquid cooling) appears on 720 US grants and 810 published applications in this corpus.
Search patents in H01F- Granted patents
- 720
- Published applications
- 810
- Assignees
- 364
- Inventors
- 1,754
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 8 | 0 |
| 1978 | 9 | 0 |
| 1979 | 6 | 0 |
| 1980 | 5 | 0 |
| 1981 | 5 | 0 |
| 1982 | 7 | 0 |
| 1983 | 2 | 0 |
| 1984 | 12 | 0 |
| 1985 | 9 | 0 |
| 1986 | 11 | 0 |
| 1987 | 6 | 0 |
| 1988 | 8 | 0 |
| 1989 | 6 | 0 |
| 1990 | 7 | 0 |
| 1991 | 3 | 0 |
| 1992 | 4 | 0 |
| 1993 | 2 | 0 |
| 1994 | 5 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 5 | 0 |
| 1998 | 5 | 0 |
| 1999 | 6 | 0 |
| 2000 | 5 | 0 |
| 2001 | 4 | 0 |
| 2002 | 6 | 6 |
| 2003 | 7 | 8 |
| 2004 | 6 | 12 |
| 2005 | 9 | 12 |
| 2006 | 7 | 8 |
| 2007 | 8 | 8 |
| 2008 | 10 | 24 |
| 2009 | 6 | 15 |
| 2010 | 15 | 18 |
| 2011 | 19 | 29 |
| 2012 | 18 | 30 |
| 2013 | 18 | 26 |
| 2014 | 15 | 35 |
| 2015 | 25 | 36 |
| 2016 | 20 | 42 |
| 2017 | 36 | 49 |
| 2018 | 39 | 55 |
| 2019 | 37 | 55 |
| 2020 | 48 | 63 |
| 2021 | 35 | 69 |
| 2022 | 42 | 50 |
| 2023 | 47 | 48 |
| 2024 | 45 | 60 |
| 2025 | 32 | 28 |
| 2026 | 23 | 24 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Electro-magnetic coil with coolant permeability6 Oct 2026US 12,755,890 B2Magnebotix AG
- Intelligent drying device for transformer15 Sep 2026US 12,734,478 B2Fortune Electric Co., Ltd.
- Methods for thermal management in inductors8 Sep 2026US 12,731,721 B2Hamilton Sundstrand Corporation
- Inductor and electronic device28 Jul 2026US 12,695,020 B2Huawei Digital Power Technologies Co., Ltd.
- Liquid cooled inductor14 Jul 2026US 12,683,058 B2Ford Global Technologies, LLC
- Method and system for diagnosing leakage of insulating oil24 Sep 2026US 2026/0287457 A1Fortune Electric Co., Ltd.
- Air-cell rupture diagnosis method and system24 Sep 2026US 2026/0290683 A1Fortune Electric Co., Ltd.
- Coil unit3 Sep 2026US 2026/0260802 A1Denso Corporation
- Electric arrangement, panel and heat exchanger27 Aug 2026US 2026/0251405 A1Hitachi Energy Ltd
- Self-adaptive cooling system for moving coil of high-thrust electrodynamic vibration table and control method thereof27 Aug 2026US 2026/0251527 A1China University of Mining and Technology
Most cited
By later US patents
- High-power, low-loss high-frequency electrical coil188US 3,946,349 AThe United States of America as represented by the Secretary of the Air Force · 1976
- System and method for cryogenic cooling of electromagnetic induction filter121US 10,015,908 B2The Boeing Company · 2018
- Ferrofluidic cooling and acoustical noise reduction in magnetic stimulators108US 7,396,326 B2Neuronetics, Inc. · 2008
- Dielectric fluid for use in power distribution equipment72US 5,766,517 ACooper Industries, Inc. · 1998
- Intelligent analysis system and method for fluid-filled electrical equipment54US 6,446,027 B1General Electric Company · 2002