H01H 33/7023
Characterised by an insulating tubular gas flow enhancing nozzle
Official title: {characterised by an insulating tubular gas flow enhancing nozzle (H01H33/7038 takes precedence)}
H01H33/7023 (Characterised by an insulating tubular gas flow enhancing nozzle) appears on 128 US grants and 83 published applications in this corpus.
Search patents in H01H- Granted patents
- 128
- Published applications
- 83
- Assignees
- 46
- Inventors
- 271
- Latest grant
- 5 Aug 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 4 | 0 |
| 1982 | 3 | 0 |
| 1983 | 4 | 0 |
| 1984 | 6 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 3 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 4 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 1 |
| 2002 | 3 | 0 |
| 2003 | 0 | 1 |
| 2004 | 3 | 1 |
| 2005 | 0 | 1 |
| 2006 | 2 | 1 |
| 2007 | 0 | 4 |
| 2008 | 0 | 4 |
| 2009 | 4 | 3 |
| 2010 | 1 | 1 |
| 2011 | 2 | 3 |
| 2012 | 3 | 0 |
| 2013 | 1 | 2 |
| 2014 | 1 | 2 |
| 2015 | 4 | 7 |
| 2016 | 5 | 4 |
| 2017 | 5 | 1 |
| 2018 | 3 | 5 |
| 2019 | 7 | 9 |
| 2020 | 9 | 7 |
| 2021 | 6 | 11 |
| 2022 | 9 | 4 |
| 2023 | 4 | 3 |
| 2024 | 1 | 3 |
| 2025 | 4 | 2 |
| 2026 | 0 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- 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
- Electric arc-blast nozzle with improved mechanical strength and a circuit breaker including such a nozzle11 Feb 2025US 12,224,137 B2General Electric Technology GmbH
- Gas insulation apparatus14 Jan 2025US 12,199,413 B2Kabushiki Kaisha Toshiba
- High voltage electric power switch with carbon arcing electrodes and carbon dioxide dielectric gas16 Jan 2024US 11,875,957 B2Southern States, LLC
- 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.
- Circuit breaker23 Apr 2026US 2026/0112557 A1GE Infrastructure Technology LLC
- High voltage circuit-breaker having an optimized contacts design18 Dec 2025US 2025/0385059 A1GE Vernova Infrastructure Technology LLC
- Switching device with an isolating or earthing function8 May 2025US 2025/0149276 A1Siemens Energy Global GmbH & Co. KG
Most cited
By later US patents
- Separable insulated connector and method29US 7,134,889 B2Cooper Technologies Company · 2006
- High-voltage circuit-interrupters20US 4,086,461 AReyrolle Parsons Limited · 1978
- Gas blast circuit breaker19US 3,941,962 ASprecher & Schuh AG · 1976
- Power breaker16US 5,925,863 AABB Research Ltd. · 1999
- Sensing structure for component wear in high voltage circuit interrupters15US 5,453,591 AABB Power T&D Company Inc. · 1995