H03K 17/73
For dc voltages or currents
Official title: for DC voltages or currents (H03K17/722, H03K17/735 take precedence)
H03K17/73 (For dc voltages or currents) appears on 144 US grants and 44 published applications in this corpus.
Search patents in H03K- Granted patents
- 144
- Published applications
- 44
- Assignees
- 81
- Inventors
- 242
- Latest grant
- 14 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 8 | 0 |
| 1977 | 6 | 0 |
| 1978 | 9 | 0 |
| 1979 | 0 | 0 |
| 1980 | 4 | 0 |
| 1981 | 5 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 5 | 0 |
| 1985 | 4 | 0 |
| 1986 | 8 | 0 |
| 1987 | 5 | 0 |
| 1988 | 6 | 0 |
| 1989 | 9 | 0 |
| 1990 | 5 | 0 |
| 1991 | 4 | 0 |
| 1992 | 5 | 0 |
| 1993 | 2 | 0 |
| 1994 | 4 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 1 |
| 2003 | 2 | 0 |
| 2004 | 0 | 0 |
| 2005 | 1 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 2 |
| 2008 | 1 | 2 |
| 2009 | 1 | 2 |
| 2010 | 3 | 0 |
| 2011 | 2 | 2 |
| 2012 | 1 | 0 |
| 2013 | 1 | 2 |
| 2014 | 0 | 2 |
| 2015 | 3 | 5 |
| 2016 | 5 | 3 |
| 2017 | 1 | 2 |
| 2018 | 3 | 1 |
| 2019 | 0 | 3 |
| 2020 | 4 | 2 |
| 2021 | 3 | 2 |
| 2022 | 2 | 4 |
| 2023 | 3 | 4 |
| 2024 | 3 | 3 |
| 2025 | 3 | 0 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Fault current bypass based solid state circuit breakers and active clamping snubbers for DC circuit breakers14 Apr 2026US 12,603,649 B2
- Semiconductor relay device9 Dec 2025US 12,494,781 B2Kabushiki Kaisha Toshiba
- Analog dynamic triac firing circuit15 Apr 2025US 12,278,578 B2Whirlpool Corporation
- Circuit and method for improving efficiency by use of external inductor for temperature control11 Mar 2025US 12,249,980 B2Potens Semiconductor Corp.
- Soft turn-off active clamp protection circuit and power system26 Nov 2024US 12,155,201 B2Sunwoda Mobility Energy Technology Co., Ltd.
- Solid-state bidirectional switch with soft switching26 Feb 2026US 2026/0058646 A1University of Connecticut
- Power electronics device8 Jan 2026US 2026/0012174 A1Infineon Technologies Austria AG
- Circuit and method for improving efficiency by use of external inductor for temperature control4 Jul 2024US 2024/0223184 A1Potens Semiconductor Corp.
- Analog dynamic triac firing circuit23 May 2024US 2024/0171105 A1Whirlpool Corporation
- Semiconductor relay device9 May 2024US 2024/0154613 A1Kabushiki Kaisha Toshiba
Most cited
By later US patents
- Driver circuits for emitter switch gate turn-off SCR devices52US 4,581,542 AGeneral Electric Company · 1986
- Thyristor firing circuit module with integral optical isolation, dv/dt limitation, and bidirectional voltage transient suppression40US 4,217,618 A1980
- Turn-on/off driving technique for insulated gate thyristor32US 4,959,703 AKabushiki Kaisha Toshiba · 1990
- Diode-assisted gate turn-off thyristor30US 6,426,666 B1Virginia Tech Intellectual Properties, Inc. · 2002
- Trigger switch circuit for solenoid-actuated electric hand tool22US 4,556,803 AElectro-Matic Staplers, Inc. · 1985