H01H 2009/544
The static switching means being an insulated gate bipolar transistor
Official title: {the static switching means being an insulated gate bipolar transistor, e.g. IGBT, Darlington configuration of FET and bipolar transistor}
H01H2009/544 (The static switching means being an insulated gate bipolar transistor) appears on 121 US grants and 151 published applications in this corpus.
Search patents in H01H- Granted patents
- 121
- Published applications
- 151
- Assignees
- 61
- Inventors
- 269
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 1 | 1 |
| 2004 | 0 | 1 |
| 2005 | 1 | 0 |
| 2006 | 1 | 0 |
| 2007 | 0 | 1 |
| 2008 | 1 | 2 |
| 2009 | 1 | 0 |
| 2010 | 1 | 1 |
| 2011 | 0 | 0 |
| 2012 | 1 | 4 |
| 2013 | 2 | 3 |
| 2014 | 4 | 1 |
| 2015 | 3 | 5 |
| 2016 | 1 | 9 |
| 2017 | 0 | 7 |
| 2018 | 6 | 7 |
| 2019 | 15 | 21 |
| 2020 | 5 | 18 |
| 2021 | 16 | 8 |
| 2022 | 22 | 14 |
| 2023 | 7 | 10 |
| 2024 | 10 | 12 |
| 2025 | 9 | 11 |
| 2026 | 9 | 15 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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Most cited
By later US patents
- Direct-current breaker for high power for connection into a direct-current carrying high-voltage line251US 5,517,378 AAsea Brown Boveri AG · 1996
- High voltage, high current switching apparatus61US 5,536,980 ATexas Instruments Incorporated · 1996
- Semiconductor switch-assisted electromechanical relay55US 6,643,112 B1Crouzet Automatismes · 2003
- Hybrid DC electromagnetic contactor42US 7,079,363 B2LG Industrial Systems Co., Ltd. · 2006
- Hybrid circuit using miller effect for protection of electrical contacts from arcing30US 5,652,688 ASchweitzer Engineering Laboratories, Inc. · 1997