H01F 27/025
Constructional details relating to cooling
Official title: {Constructional details relating to cooling}
H01F27/025 (Constructional details relating to cooling) appears on 296 US grants and 426 published applications in this corpus.
Search patents in H01F- Granted patents
- 296
- Published applications
- 426
- Assignees
- 203
- Inventors
- 965
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 1 |
| 2002 | 2 | 1 |
| 2003 | 0 | 1 |
| 2004 | 0 | 3 |
| 2005 | 2 | 4 |
| 2006 | 3 | 2 |
| 2007 | 1 | 6 |
| 2008 | 3 | 4 |
| 2009 | 4 | 3 |
| 2010 | 4 | 8 |
| 2011 | 7 | 8 |
| 2012 | 4 | 6 |
| 2013 | 8 | 11 |
| 2014 | 9 | 10 |
| 2015 | 4 | 14 |
| 2016 | 10 | 18 |
| 2017 | 15 | 23 |
| 2018 | 11 | 31 |
| 2019 | 20 | 27 |
| 2020 | 30 | 35 |
| 2021 | 19 | 47 |
| 2022 | 26 | 41 |
| 2023 | 27 | 31 |
| 2024 | 27 | 34 |
| 2025 | 31 | 30 |
| 2026 | 11 | 27 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Electric device with forced direct cooling28 Jul 2026US 12,695,019 B2Siemens Energy Global GmbH & Co. KG
- Electrotechnical device for an aircraft14 Jul 2026US 12,683,056 B2Safran Electrical & Power
- Technologies for preventing the explosion of electrical transformers9 Jun 2026US 12,651,698 B2Philippe Magnier LLC
- Housing part, electrical system and operating method12 May 2026US 12,626,850 B2Hitachi Energy Ltd
- Transformer device5 May 2026US 12,620,524 B2Dmg Mori Co., Ltd.
- Coil device and in-vehicle device1 Oct 2026US 2026/0302038 A1Mitsubishi Electric Corporation
- Solenoid valve and coil thereof, and housing of coil3 Sep 2026US 2026/0260801 A1Zhejiang Dunan Artificial Environment Co., Ltd.
- Coil unit3 Sep 2026US 2026/0260802 A1Denso Corporation
- Submodule for single packaging type semiconductor transformer with excellent insulation performance27 Aug 2026US 2026/0253793 A1Hyosung Heavy Industries Corporation
- Coil component and filter stage20 Aug 2026US 2026/0245782 A1
Most cited
By later US patents
- System and method for cryogenic cooling of electromagnetic induction filter121US 10,015,908 B2The Boeing Company · 2018
- Enclosure with integrated heat wick55US 7,817,428 B22010
- Heat exchangers and electrical apparatus having heat exchangers47US 4,745,966 AWestinghouse Electric Corp. · 1988
- Magnetic core mounting system40US 6,392,519 B1Delphi Technologies, Inc. · 2002
- Method for making a transformer36US 6,185,811 B1Hammond Manufacturing Company Limited · 2001