H01H 3/605
Making use of a fluid damper
Official title: {making use of a fluid damper}
H01H3/605 (Making use of a fluid damper) appears on 48 US grants and 38 published applications in this corpus.
Search patents in H01H- Granted patents
- 48
- Published applications
- 38
- Assignees
- 30
- Inventors
- 93
- Latest grant
- 16 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 2 | 0 |
| 2003 | 0 | 2 |
| 2004 | 3 | 2 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 1 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 3 |
| 2013 | 1 | 2 |
| 2014 | 4 | 10 |
| 2015 | 5 | 2 |
| 2016 | 3 | 1 |
| 2017 | 4 | 1 |
| 2018 | 1 | 1 |
| 2019 | 2 | 3 |
| 2020 | 3 | 3 |
| 2021 | 1 | 1 |
| 2022 | 2 | 1 |
| 2023 | 2 | 1 |
| 2024 | 0 | 1 |
| 2025 | 2 | 1 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Operating mechanism for circuit breakers16 Dec 2025US 12,500,052 B2Hitachi Energy Ltd
- High voltage circuit-breaker26 Aug 2025US 12,400,816 B2Hitachi Energy Ltd
- Diagnostic apparatus for switching device12 Dec 2023US 11,841,399 B2Mitsubishi Electric Corporation
- Assembly and method for damping switching movements in high-voltage circuit breakers31 Jan 2023US 11,569,047 B2Siemens Energy Global GmbH & Co. KG
- Key arrangement employing mechanical and magnetic forces15 Nov 2022US 11,501,934 B2Dr. Ing. h,c.F. Porsche Aktiengesellschaft
- Driving mechanism and operating device for an electrical switch2 Apr 2026US 2026/0094774 A1Eaton Intelligent Power Limited
- Fast earthing switch for interrupting non-short-circuit currents27 Mar 2025US 2025/0104946 A1Hitachi Energy Ltd
- Operating mechanism for circuit breakers2 May 2024US 2024/0145192 A1Hitachi Energy Ltd
- High voltage circuit-breaker3 Aug 2023US 2023/0245846 A1Hitachi Energy Switzerland AG
- Diagnostic apparatus for switching device10 Mar 2022US 2022/0074990 A1Mitsubishi Electric Corporation
Most cited
By later US patents
- Multiple degree of freedom damped hand controls223US 5,107,080 AMassachusetts Institute of Technology · 1992
- Fluid actuating device for an electric circuit breaker14US 4,321,435 ASiemens Aktiengesellschaft · 1982
- Hydraulic jacks8US 4,026,523 A1977
- High speed hydraulically-actuated operating system for an electric circuit breaker8US 4,387,280 AGeneral Electric Company · 1983
- High speed actuating device and circuit breaker8US 7,528,332 B1Utron Inc. · 2009