H01H 33/304
Working fluid supplies
Official title: {Working fluid supplies}
H01H33/304 (Working fluid supplies) appears on 8 US grants and 6 published applications in this corpus.
Search patents in H01H- Granted patents
- 8
- Published applications
- 6
- Assignees
- 4
- Inventors
- 11
- Latest grant
- 14 Feb 2017
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 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 | 1 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 0 |
| 2014 | 1 | 4 |
| 2015 | 3 | 0 |
| 2016 | 0 | 0 |
| 2017 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Buffering device for the operating mechanism of a switchgear, and method of lubrication thereof14 Feb 2017US 9,570,891 B2Kabushiki Kaisha Toshiba
- Buffering device for the operating mechanism of a switchgear, and method of lubrication thereof3 Nov 2015US 9,178,339 B2Kabushiki Kaisha Toshiba
- Buffering device for the operating mechanism of a switchgear, and method of lubrication thereof22 Sep 2015US 9,142,941 B2Kabushiki Kaisha Toshiba
- Buffering device for the operating mechanism of a switchgear, and method of lubrication thereof15 Sep 2015US 9,136,675 B2Kabushiki Kaisha Toshiba
- Buffering device for the operating mechanism of a switchgear, and method of lubrication thereof30 Sep 2014US 8,844,913 B2Kabushiki Kaisha Toshiba
- Buffering device for the operating mechanism of a switchgear, and method of lubrication thereof4 Dec 2014US 2014/0353086 A1Kabushiki Kaisha Toshiba
- Buffering device for the operating mechanism of a switchgear, and method of lubrication thereof4 Dec 2014US 2014/0353888 A1Kabushiki Kaisha Toshiba
- Buffering device for the operating mechanism of a switchgear, and method of lubrication thereof4 Dec 2014US 2014/0353889 A1Kabushiki Kaisha Toshiba
- Buffering device for the operating mechanism of a switchgear, and method of lubrication thereof4 Dec 2014US 2014/0353890 A1Kabushiki Kaisha Toshiba
- Buffering device for the operating mechanism of a switchgear, and method of lubrication thereof27 Sep 2012US 2012/0242018 A1Kabushiki Kaisha Toshiba
Most cited
By later US patents
- Poletop switch automation system16US 5,534,858 ASystem Analysis & Integration, Inc. · 1996
- Pneumatic operating mechanism for a circuit-breaker3US 4,213,020 AWestinghouse Electric Corp. · 1980
- Buffering device for the operating mechanism of a switchgear, and method of lubrication thereof3US 8,844,913 B2Kabushiki Kaisha Toshiba · 2014
- Hydraulic operating apparatus for switch2US 6,875,941 B2Japan Ae Power Systems Corporation · 2005