H01H 33/7015
Characterised by flow directing elements associated with contacts
Official title: {characterised by flow directing elements associated with contacts (electrical or mechanical properties of the contact system H01H1/385)}
H01H33/7015 (Characterised by flow directing elements associated with contacts) appears on 238 US grants and 158 published applications in this corpus.
Search patents in H01H- Granted patents
- 238
- Published applications
- 158
- Assignees
- 72
- Inventors
- 459
- Latest grant
- 9 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 5 | 0 |
| 1978 | 3 | 0 |
| 1979 | 2 | 0 |
| 1980 | 7 | 0 |
| 1981 | 7 | 0 |
| 1982 | 4 | 0 |
| 1983 | 7 | 0 |
| 1984 | 9 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 4 | 0 |
| 1988 | 2 | 0 |
| 1989 | 4 | 0 |
| 1990 | 5 | 0 |
| 1991 | 2 | 0 |
| 1992 | 4 | 0 |
| 1993 | 5 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 4 | 0 |
| 1999 | 5 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 1 |
| 2002 | 5 | 1 |
| 2003 | 2 | 2 |
| 2004 | 6 | 3 |
| 2005 | 1 | 3 |
| 2006 | 2 | 2 |
| 2007 | 2 | 6 |
| 2008 | 1 | 5 |
| 2009 | 4 | 5 |
| 2010 | 3 | 5 |
| 2011 | 3 | 3 |
| 2012 | 5 | 2 |
| 2013 | 3 | 7 |
| 2014 | 2 | 8 |
| 2015 | 12 | 11 |
| 2016 | 11 | 9 |
| 2017 | 7 | 2 |
| 2018 | 5 | 7 |
| 2019 | 9 | 14 |
| 2020 | 13 | 11 |
| 2021 | 11 | 18 |
| 2022 | 14 | 8 |
| 2023 | 6 | 7 |
| 2024 | 7 | 8 |
| 2025 | 7 | 4 |
| 2026 | 1 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H01H 33/7023Characterised by an insulating tubular gas flow enhancing nozzle128
- H01H 33/7038Characterised by a conducting tubular gas flow enhancing nozzle39
- H01H 33/7076Characterised by the use of special materials35
- H01H 33/7069Characterised by special dielectric or insulating properties or by special electric or24
- H01H 33/7061Characterised by use of special mounting means20
- H01H 33/7084Characterised by movable parts influencing the gas flow18
- H01H 33/7092Characterised by several arcing chambers in series5
Recent patents
- Circuit breaker comprising an improved gas flow management9 Jun 2026US 12,651,716 B2GE Vernova Infrastructure Technology LLC
- High voltage circuit-breaker26 Aug 2025US 12,400,816 B2Hitachi Energy Ltd
- Electric current knife switch5 Aug 2025US 12,381,054 B2ABB Schweiz AG
- Circuit breaker comprising an improved gas flow management1 Jul 2025US 12,347,634 B2GE Vernova Infrastructure Technology LLC
- Compressed gas switch3 Jun 2025US 12,322,935 B2Siemens Energy Global GmbH & Co. KG
- Medium or high voltage circuit breaker1 Oct 2026US 2026/0302108 A1GE Vernova Infrastructure Technology LLC
- Linear puffer switch24 Sep 2026US 2026/0290731 A1
- Electric arc blast nozzel20 Aug 2026US 2026/0245817 A1GE Vernova Infrastructure Technology LLC
- Self-blast circuit breaker and auxiliary nozzle therefor25 Jun 2026US 2026/0179865 A1Mitsubishi Electric Power Products, Inc.
- High voltage circuit-breaker30 Apr 2026US 2026/0120986 A1Hitachi Energy Ltd
Most cited
By later US patents
- Gas-blast circuit breaker90US 4,935,590 AMerlin Gerin · 1990
- Electrical circuit breaker with self-extinguishing expansion and insulating gas86US 5,057,655 AMerlin Gerin · 1991
- Electrical circuit breaker with rotating arc and self-extinguishing expansion85US 5,347,097 A1994
- Separable insulated connector and method29US 7,134,889 B2Cooper Technologies Company · 2006
- High-voltage circuit-interrupters20US 4,086,461 AReyrolle Parsons Limited · 1978