H01H 2033/308
Comprising control and pilot valves
Official title: {comprising control and pilot valves}
H01H2033/308 (Comprising control and pilot valves) appears on 17 US grants and 4 published applications in this corpus.
Search patents in H01H- Granted patents
- 17
- Published applications
- 4
- Assignees
- 11
- Inventors
- 32
- Latest grant
- 23 Sep 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 3 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 1 | 0 |
| 2014 | 1 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
| 2024 | 0 | 0 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Actuating mechanism for operating a circuit breaker23 Sep 2025US 12,424,400 B2GE Vernova Infrastructure Technology LLC
- Valve arrangement22 Apr 2014US 8,701,706 B2ABB Technology AG
- Valve arrangement18 Jun 2013US 8,464,753 B2ABB Technology AG
- Hydraulic pressure actuating apparatus for circuit breaker9 Nov 2004US 6,815,629 B2Hitachi, Ltd.
- Hydraulic device for operating a drive piston for a moving component2 Jun 1998US 5,760,358 AABB Patent GmbH
- Actuating mechanism for operating a circuit breaker21 Dec 2023US 2023/0411090 A1General Electric Technology GmbH
- Valve arrangement1 Nov 2012US 2012/0273700 A1ABB Technology AG
- Valve arrangement30 Sep 2010US 2010/0243927 A1ABB Technology AG
- Hydraulic pressure actuating apparatus for circuit breaker20 Nov 2003US 2003/0213774 A1Hitachi, Ltd.
Most cited
By later US patents
- Fluid actuating device for an electric circuit breaker15US 3,969,985 ASiemens Aktiengesellschaft · 1976
- High speed hydraulically-actuated operating system for an electric circuit breaker8US 4,387,280 AGeneral Electric Company · 1983
- Three-way hydraulic valve8US 4,794,950 A1989
- Drain devices in hydraulic control circuits7US 3,954,249 A1976
- Hydraulically-actuated operating system for an electric circuit breaker7US 4,118,613 AGeneral Electric Company · 1978