H01H 33/7038
Characterised by a conducting tubular gas flow enhancing nozzle
Official title: {characterised by a conducting tubular gas flow enhancing nozzle}
H01H33/7038 (Characterised by a conducting tubular gas flow enhancing nozzle) appears on 39 US grants and 22 published applications in this corpus.
Search patents in H01H- Granted patents
- 39
- Published applications
- 22
- Assignees
- 27
- Inventors
- 108
- Latest grant
- 9 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 3 | 0 |
| 1981 | 3 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 0 |
| 2004 | 2 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 2 |
| 2014 | 0 | 2 |
| 2015 | 4 | 3 |
| 2016 | 2 | 0 |
| 2017 | 0 | 0 |
| 2018 | 1 | 0 |
| 2019 | 0 | 4 |
| 2020 | 2 | 1 |
| 2021 | 3 | 1 |
| 2022 | 1 | 1 |
| 2023 | 1 | 0 |
| 2024 | 0 | 4 |
| 2025 | 2 | 1 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Circuit breaker comprising an improved gas flow management9 Jun 2026US 12,651,716 B2GE Vernova Infrastructure Technology LLC
- Compressed gas switch3 Jun 2025US 12,322,935 B2Siemens Energy Global GmbH & Co. KG
- Earthing switch18 Feb 2025US 12,230,466 B2Hyundai Electric & Energy Systems Co., Ltd.
- System for controlling and cooling gas of circuit breaker and method thereof24 Oct 2023US 11,798,761 B2Technologies Mindcore Inc.
- Movable part of circuit breaker for gas-insulated switchgear3 May 2022US 11,322,321 B2Hyosung Heavy Industries Corporation
- Circuit breaker23 Apr 2026US 2026/0112557 A1GE Infrastructure Technology LLC
- Hv/mv switch contacts arrangement24 Apr 2025US 2025/0132105 A1
- Gas-insulated high or medium voltage circuit breaker21 Nov 2024US 2024/0387125 A1Hitachi Energy Ltd
- Earthing switch5 Sep 2024US 2024/0296999 A1Hyundai Electric & Energy Systems Co., Ltd.
- Circuit breaker comprising an improved gas flow management8 Aug 2024US 2024/0266129 A1General Electric Technology GmbH
Most cited
By later US patents
- 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
- High-voltage circuit-interrupters20US 4,086,461 AReyrolle Parsons Limited · 1978
- Power breaker20US 5,902,978 AAsea Brown Boveri AG · 1999
- Contact system for high-voltage power circuit breakers9US 4,032,737 ASiemens Aktiengesellschaft · 1977