H01F 2005/022
Wound on formers with several winding chambers separated by flanges
Official title: {wound on formers with several winding chambers separated by flanges, e.g. for high voltage applications}
H01F2005/022 (Wound on formers with several winding chambers separated by flanges) appears on 116 US grants and 99 published applications in this corpus.
Search patents in H01F- Granted patents
- 116
- Published applications
- 99
- Assignees
- 102
- Inventors
- 296
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 6 | 0 |
| 1984 | 1 | 0 |
| 1985 | 3 | 0 |
| 1986 | 2 | 0 |
| 1987 | 6 | 0 |
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 3 | 0 |
| 1995 | 1 | 0 |
| 1996 | 5 | 0 |
| 1997 | 1 | 0 |
| 1998 | 4 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 2 | 8 |
| 2007 | 4 | 7 |
| 2008 | 3 | 3 |
| 2009 | 2 | 9 |
| 2010 | 8 | 7 |
| 2011 | 3 | 6 |
| 2012 | 3 | 4 |
| 2013 | 3 | 3 |
| 2014 | 3 | 1 |
| 2015 | 0 | 6 |
| 2016 | 1 | 5 |
| 2017 | 5 | 6 |
| 2018 | 5 | 3 |
| 2019 | 2 | 3 |
| 2020 | 2 | 2 |
| 2021 | 3 | 5 |
| 2022 | 5 | 5 |
| 2023 | 6 | 5 |
| 2024 | 2 | 1 |
| 2025 | 1 | 6 |
| 2026 | 1 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Reactor4 Aug 2026US 12,700,535 B2ABB E-mobility B.V.
- Inductive component4 Feb 2025US 12,217,906 B2TDK Electronics Co., Ltd.
- Method of assembling a combined transformer/inductor device22 Oct 2024US 12,125,625 B2Vishay Dale Electronics, Inc.
- Coil device and method for manufacturing same and bobbin for coil used therein7 May 2024US 11,978,585 B2Tds Co. Ltd
- Methods and systems for a floating cable trap5 Dec 2023US 11,835,605 B2GE Precision Healthcare LLC
- Electronic component, in particular a three-phase transformer for an isolated voltage converter9 Jul 2026US 2026/0196404 A1Valeo Electrification
- Transformer for a voltage converter9 Jul 2026US 2026/0196405 A1Valeo Electrification
- Bobbin and transformer4 Jun 2026US 2026/0155298 A1Delta Electronics (Shanghai) Co., Ltd.
- Multi-chamber transformer and mounting assembly4 Sep 2025US 2025/0279235 A1Inventronics, Inc.
- Transformer module21 Aug 2025US 2025/0266208 A1Hyundai Mobis Co., Ltd.
Most cited
By later US patents
- Step-up transformer68US 5,359,313 AToko, Inc. · 1994
- Coil body25US 4,405,913 AMid-West Transformer Company · 1983
- High voltage winding lead and terminal structure23US 4,091,349 AGeneral Electric Company · 1978
- Flyback transformer21US 4,408,176 ASanyo Electric Co., Ltd. · 1983
- Isolating high voltage transformer for video apparatus21US 4,967,121 ARCA Licensing Corporation · 1990