H03K 17/725
For ac voltages or currents
Official title: for AC voltages or currents (H03K17/722, H03K17/735 take precedence)
H03K17/725 (For ac voltages or currents) appears on 176 US grants and 71 published applications in this corpus.
Search patents in H03K- Granted patents
- 176
- Published applications
- 71
- Assignees
- 111
- Inventors
- 267
- Latest grant
- 17 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 8 | 0 |
| 1977 | 8 | 0 |
| 1978 | 6 | 0 |
| 1979 | 4 | 0 |
| 1980 | 4 | 0 |
| 1981 | 6 | 0 |
| 1982 | 9 | 0 |
| 1983 | 6 | 0 |
| 1984 | 6 | 0 |
| 1985 | 4 | 0 |
| 1986 | 2 | 0 |
| 1987 | 4 | 0 |
| 1988 | 0 | 0 |
| 1989 | 9 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 6 | 0 |
| 1993 | 3 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 5 | 0 |
| 1999 | 4 | 0 |
| 2000 | 4 | 0 |
| 2001 | 4 | 0 |
| 2002 | 1 | 2 |
| 2003 | 3 | 1 |
| 2004 | 1 | 2 |
| 2005 | 0 | 3 |
| 2006 | 3 | 0 |
| 2007 | 2 | 3 |
| 2008 | 1 | 2 |
| 2009 | 1 | 2 |
| 2010 | 2 | 2 |
| 2011 | 2 | 1 |
| 2012 | 0 | 2 |
| 2013 | 1 | 1 |
| 2014 | 3 | 11 |
| 2015 | 4 | 2 |
| 2016 | 5 | 4 |
| 2017 | 6 | 5 |
| 2018 | 4 | 2 |
| 2019 | 6 | 4 |
| 2020 | 3 | 4 |
| 2021 | 6 | 1 |
| 2022 | 2 | 5 |
| 2023 | 6 | 3 |
| 2024 | 2 | 2 |
| 2025 | 2 | 5 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method, apparatus for operating a conduction assembly, start device, and computer-readable medium17 Mar 2026US 12,580,557 B2Schneider Electric Industries SAS
- Thyristor control device3 Jun 2025US 12,323,136 B2STMicroelectronics (Tours) SAS
- Debounced solid state switching device21 Jan 2025US 12,206,399 B2Cummins Inc.
- Intelligent electrical switches8 Oct 2024US 12,113,525 B2Amber Semiconductor, Inc.
- Solid state relay harvesting power from load by measuring zero crossing13 Aug 2024US 12,063,032 B2Littelfuse, Inc.
- Device for controlling a three-electrodes power switch9 Jul 2026US 2026/0196921 A1STMicroelectronics International N. V.
- Switch5 Feb 2026US 2026/0039296 A1STMicroelectronics International N. V.
- Thyristor control device18 Sep 2025US 2025/0293681 A1STMicroelectronics (Tours) SAS
- Load switching device7 Aug 2025US 2025/0253839 A1STMicroelectronics International N. V.
- Switched redundant static transfer switch rapid turn-off system12 Jun 2025US 2025/0192605 A1ABB Schweiz AG
Most cited
By later US patents
- Load control system205US 4,833,339 ALutron Electronics Co., Inc. · 1989
- PNPN Semiconductor switches77US 4,244,000 ANippon Telegraph & Telephone Public Corporation · 1981
- Switch assembly, electric machine having the switch assembly, and method of controlling the same64US 7,183,741 B2A. O. Smith Corporation · 2007
- Method and circuit for controlling a hybrid contactor61US 4,356,525 AGeneral Electric Company · 1982
- Digital touch controlled dimmer switch59US 4,246,494 ANational Electric Corporation · 1981