H03K 17/61
Using transformer coupling
Official title: using transformer coupling
H03K17/61 (Using transformer coupling) appears on 63 US grants and 63 published applications in this corpus.
Search patents in H03K- Granted patents
- 63
- Published applications
- 63
- Assignees
- 46
- Inventors
- 122
- Latest grant
- 28 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 1 | 2 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 1 | 1 |
| 2009 | 1 | 2 |
| 2010 | 0 | 2 |
| 2011 | 1 | 0 |
| 2012 | 1 | 1 |
| 2013 | 3 | 3 |
| 2014 | 0 | 0 |
| 2015 | 1 | 8 |
| 2016 | 0 | 7 |
| 2017 | 10 | 5 |
| 2018 | 8 | 4 |
| 2019 | 5 | 4 |
| 2020 | 4 | 8 |
| 2021 | 6 | 4 |
| 2022 | 2 | 4 |
| 2023 | 5 | 3 |
| 2024 | 0 | 0 |
| 2025 | 2 | 3 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Data communication for galvanic isolated DC-DC converter on fully integrated architecture with coreless transformer28 Apr 2026US 12,614,984 B2STMicroelectronics International N. V.
- Electric heating device for a motor vehicle17 Jun 2025US 12,336,060 B2Eberspacher catem GmbH & Co.KG
- Signal transmission device, electronic device, and vehicle22 Apr 2025US 12,284,060 B2Rohm Co., Ltd.
- High-power switching module for the direct pulse energy feeding of a consumer10 Oct 2023US 11,784,640 B2Spree Hybrid & Kommunikationstechnik GmbH
- Circuitry for providing digitally stable ground30 May 2023US 11,664,797 B2Ubicquia, Inc.
- Switch and drive apparatus27 Aug 2026US 2026/0254450 A1Huawei Digital Power Technologies Co., Ltd.
- Signal transmission circuit device, semiconductor device, method and apparatus for inspecting semiconductor device, signal transmission device, and motor drive apparatus using signal transmission device7 Aug 2025US 2025/0253849 A1Rohm Co., Ltd.
- Signal transmission device, electronic device, and vehicle3 Jul 2025US 2025/0219875 A1Rohm Co., Ltd.
- Data communication for galvanic isolated dc-dc converter on fully integrated architecture with coreless transformer30 Jan 2025US 2025/0038670 A1STMicroelectronics International N. V.
- Signal transmission device, electronic device, and vehicle5 Oct 2023US 2023/0318882 A1Rohm Co., Ltd.
Most cited
By later US patents
- High voltage switch with isolated power80US 10,607,814 B2Eagle Harbor Technologies, Inc. · 2020
- High voltage switch with isolated power55US 10,896,809 B2Eagle Harbor Technologies, Inc. · 2021
- Isolation circuit for pulse waveforms53US 4,937,468 ASundstrand Corporation · 1990
- Power conversion device, driving device and driving method36US 10,009,024 B2Delta Electronics (Shanghai) Co., Ltd. · 2018
- System and method for monitoring voltage across isolation barrier29US 9,608,623 B1NXP USA, Inc. · 2017