H01H 2033/306
Monitoring the pressure of the working fluid
Official title: {monitoring the pressure of the working fluid, e.g. for protection measures}
H01H2033/306 (Monitoring the pressure of the working fluid) appears on 14 US grants and 8 published applications in this corpus.
Search patents in H01H- Granted patents
- 14
- Published applications
- 8
- Assignees
- 10
- Inventors
- 27
- Latest grant
- 8 Apr 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 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 | 2 |
| 2007 | 1 | 0 |
| 2008 | 1 | 1 |
| 2009 | 1 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 1 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 1 |
| 2021 | 1 | 0 |
| 2022 | 0 | 2 |
| 2023 | 2 | 1 |
| 2024 | 0 | 0 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Switch assembly for valve actuator8 Apr 2025US 12,270,487 B2Automatic Switch Company
- Arc extinguishing systems5 Dec 2023US 11,837,420 B2Siemens Aktiengesellschaft
- Switch assembly for valve actuator3 Jan 2023US 11,543,047 B2Automatic Switch Company
- Anomaly diagnosis device and anomaly diagnosis method for oil-hydraulic operating mechanism15 Jun 2021US 11,038,339 B2Mitsubishi Electric Corporation
- Cam disk and spring excursion switch for a stored-energy spring mechanism and stored-energy spring mechanism2 Apr 2013US 8,410,386 B2ABB Technology AG
- Switch assembly for valve actuator8 Jun 2023US 2023/0175607 A1Automatic Switch Company
- Switch assembly for valve actuator30 Jun 2022US 2022/0205555 A1Automatic Switch Company
- Arc extinguishing systems9 Jun 2022US 2022/0181106 A1Siemens Aktiengesellschaft
- Anomaly diagnosis device and anomaly diagnosis method for oil-hydraulic operating mechanism8 Oct 2020US 2020/0321771 A1Mitsubishi Electric Corporation
- Cam disk and spring excursion switch for a stored-energy spring mechanism and stored-energy spring mechanism14 Jul 2011US 2011/0168533 A1ABB Technology AG
Most cited
By later US patents
- Electrical switchgear18US 4,513,208 ATokyo Shibaura Denki Kabushiki Kaisha · 1985
- Fail-safe hydraulically operated circuit breaker accumulator arrangement9US 4,461,937 AMcGraw-Edison Company · 1984
- Self-contained hydraulic switch operator6US 4,117,678 ATurner Electric Corporation · 1978
- Hydraulic system for operating switching or like devices6US 4,894,988 ATurner Electric Corporation · 1990
- Hydraulic driving device for an electric pressurized-gas switch5US 4,730,092 ASiemens Aktiengesellschaft · 1988