H01F 27/408
Association with diode or rectifier
Official title: {Association with diode or rectifier}
H01F27/408 (Association with diode or rectifier) appears on 145 US grants and 172 published applications in this corpus.
Search patents in H01F- Granted patents
- 145
- Published applications
- 172
- Assignees
- 104
- Inventors
- 373
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 3 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 4 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 1 | 1 |
| 2008 | 0 | 1 |
| 2009 | 1 | 7 |
| 2010 | 1 | 0 |
| 2011 | 2 | 1 |
| 2012 | 1 | 6 |
| 2013 | 4 | 8 |
| 2014 | 2 | 6 |
| 2015 | 5 | 3 |
| 2016 | 3 | 2 |
| 2017 | 3 | 7 |
| 2018 | 9 | 32 |
| 2019 | 25 | 13 |
| 2020 | 10 | 12 |
| 2021 | 13 | 11 |
| 2022 | 9 | 17 |
| 2023 | 7 | 9 |
| 2024 | 8 | 18 |
| 2025 | 9 | 7 |
| 2026 | 5 | 11 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Power supply module and transformer power supply device16 Jun 2026US 12,658,820 B2Delta Electronics (Shanghai) Co., Ltd.
- Magnetically coupled reactor and boosting circuit12 May 2026US 12,626,858 B2Komatsu Ltd.
- Magnetic element, method for manufacturing magnetic element, and power supply module24 Feb 2026US 12,562,305 B2Delta Electronics (Shanghai) Co., Ltd.
- Low voltage high current power supply device27 Jan 2026US 12,537,130 B2Hefei Sanyu Electric Co., Ltd
- Power converter/transformer assembly and current balance20 Jan 2026US 12,531,477 B2Infineon Technologies Austria AG
- High-energy scalable, pulse-power, multimode multifilar-wound inductor6 Aug 2026US 2026/0229402 A1Richard H. Sherratt and Susan B. Sherratt Trust Fund
- Systems and methods for leadless power coupling for cryogenic environments2 Jul 2026US 2026/0188570 A1The Florida State University Research Foundation, Inc.
- Low Common-Mode Noise Planar Transformer25 Jun 2026US 2026/0179831 A1National Instruments Corporation
- Adaptive clamp circuit25 Jun 2026US 2026/0180316 A1
- Method for manufacturing magnetic element21 May 2026US 2026/0142074 A1Delta Electronics (Shanghai) Co., Ltd.
Most cited
By later US patents
- Linear motor with independently controlled coils49US 4,760,294 A1988
- Portable X-ray device40US 3,970,884 A1976
- Low leakage high current transformer32US 5,331,536 AOPT Industries, Inc. · 1994
- Flyback transformer with high voltage variable resistor built therein19US 4,527,229 AMurata Manufacturing Co., Ltd. · 1985
- Transformer for low distortion rectifier system18US 4,482,945 AWestinghouse Electric Corp. · 1984