H01H 33/045
For arcs formed during closing
Official title: {for arcs formed during closing}
H01H33/045 (For arcs formed during closing) appears on 27 US grants and 16 published applications in this corpus.
Search patents in H01H- Granted patents
- 27
- Published applications
- 16
- Assignees
- 23
- Inventors
- 70
- Latest grant
- 10 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 4 | 0 |
| 1979 | 2 | 0 |
| 1980 | 3 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 3 |
| 2019 | 2 | 2 |
| 2020 | 3 | 2 |
| 2021 | 3 | 3 |
| 2022 | 0 | 0 |
| 2023 | 1 | 2 |
| 2024 | 1 | 0 |
| 2025 | 0 | 1 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- High voltage DC contactor isolation via electromechanical actuation10 Mar 2026US 12,573,570 B2Hamilton Sundstrand Corporation
- Electrocaloric heat transfer system2 Jan 2024US 11,859,878 B2Carrier Corporation
- Loadbreak bushing26 Dec 2023US 11,855,382 B2ABB Schweiz AG
- Switchgear20 Jul 2021US 11,069,494 B2Mitsubishi Electric Corporation
- Switching device13 Jul 2021US 11,062,857 B2ABB Schweiz AG
- Disconnector contact system with controlled discharge30 Apr 2026US 2026/0120967 A1Hitachi Energy Ltd
- Disconnector contact system with controlled discharge23 Apr 2026US 2026/0112551 A1Hitachi Energy Ltd
- High voltage dc contactor isolation via electromechanical actuation3 Apr 2025US 2025/0112011 A1Hamilton Sundstrand Corporation
- Loadbreak bushing27 Jul 2023US 2023/0238737 A1ABB Schweiz AG
- Ultraviolet lamp with minimized ozone generation16 Mar 2023US 2023/0077376 A1Langsim Optoelectronic Technologies (Guangdong) Limited
Most cited
By later US patents
- High-voltage loadbreak bushing insert connector70US 4,863,392 AAmerace Corporation · 1989
- Load break bushing48US 4,113,339 AWestinghouse Electric Corp. · 1978
- Electrical connector48US 4,186,985 AAmerace Corporation · 1980
- Gas operated electrical connector43US 4,822,291 AJoslyn Corporation · 1989
- Electric connector apparatus and method42US 3,945,699 AKearney-National, Inc. · 1976