H01H 33/00
High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
H01H33/00 (High-tension or heavy-current switches with arc-extinguishing or arc-preventing means) appears on 4,343 US grants and 3,119 published applications in this corpus.
Search patents in H01H- Granted patents
- 4,343
- Published applications
- 3,119
- Assignees
- 748
- Inventors
- 6,141
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 74 | 0 |
| 1977 | 84 | 0 |
| 1978 | 89 | 0 |
| 1979 | 45 | 0 |
| 1980 | 79 | 0 |
| 1981 | 101 | 0 |
| 1982 | 69 | 0 |
| 1983 | 79 | 0 |
| 1984 | 106 | 0 |
| 1985 | 91 | 0 |
| 1986 | 67 | 0 |
| 1987 | 80 | 0 |
| 1988 | 48 | 0 |
| 1989 | 55 | 0 |
| 1990 | 44 | 0 |
| 1991 | 45 | 0 |
| 1992 | 54 | 0 |
| 1993 | 49 | 0 |
| 1994 | 39 | 0 |
| 1995 | 43 | 0 |
| 1996 | 51 | 0 |
| 1997 | 43 | 0 |
| 1998 | 66 | 0 |
| 1999 | 48 | 0 |
| 2000 | 51 | 0 |
| 2001 | 53 | 23 |
| 2002 | 70 | 55 |
| 2003 | 65 | 47 |
| 2004 | 63 | 62 |
| 2005 | 48 | 50 |
| 2006 | 37 | 48 |
| 2007 | 40 | 62 |
| 2008 | 21 | 93 |
| 2009 | 42 | 85 |
| 2010 | 64 | 93 |
| 2011 | 62 | 86 |
| 2012 | 91 | 117 |
| 2013 | 88 | 154 |
| 2014 | 117 | 193 |
| 2015 | 176 | 222 |
| 2016 | 199 | 180 |
| 2017 | 184 | 163 |
| 2018 | 149 | 154 |
| 2019 | 177 | 150 |
| 2020 | 174 | 182 |
| 2021 | 158 | 151 |
| 2022 | 145 | 192 |
| 2023 | 150 | 174 |
| 2024 | 153 | 167 |
| 2025 | 144 | 116 |
| 2026 | 73 | 100 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H01H 33/02Details2,738
- H01H 33/60Switches wherein the means for extinguishing or preventing the arc do not1,727
- H01H 33/70Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing745
- H01H 33/002Very heavy-current switches86
- H01H 33/008Pedestal mounted switch gear combinations38
- H01H 33/006High-tension or heavy-current switches with arc-extinguishing or arc-preventing means: adapted for interrupting23
Recent patents
- Arrangement and method for automatically configuring a magnetic drive6 Oct 2026US 12,755,912 B2Siemens Aktiengesellschaft
- Electrical protection devices comprising an integrated switching module6 Oct 2026US 12,755,918 B2Schneider Electric Industries SAS
- Overmolded electrical device with low electrical stress parting lines29 Sep 2026US 12,749,637 B2G & W Electric Company
- SF6 free gas insulated disconnector with limited arcing volume29 Sep 2026US 12,749,638 B2GE Vernova Infrastructure Technology LLC
- Vacuum switching unit and vacuum circuit breaker22 Sep 2026US 12,744,172 B2Siemens Energy Global GmbH & Co. KG
- Switch pole for electrical systems8 Oct 2026US 2026/0311938 A1
- Switching system of an electrical device8 Oct 2026US 2026/0311943 A1Schneider Electric Industries SAS
- Apparatuses and methods for improved switchgear sensor data communication1 Oct 2026US 2026/0302107 A1Hubbell Incorporated
- Medium or high voltage circuit breaker1 Oct 2026US 2026/0302108 A1GE Vernova Infrastructure Technology LLC
- Shape of insulator member of vacuum envelope of vacuum interrupter, and switchgear employing same24 Sep 2026US 2026/0290726 A1
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
- Insulator integrated power supply218US 8,964,433 B2ABB Technology AG · 2015
- Arcing fault protection system for a switchgear enclosure127US 6,141,192 ASquare D Company · 2000
- High voltage vacuum type circuit interrupter121US 4,568,804 AJoslyn Mfg. and Supply Co. · 1986
- Current limiting device117US 5,614,881 AGeneral Electric Company · 1997