H01H 3/24
Using pneumatic or hydraulic actuator
Official title: using pneumatic or hydraulic actuator {(for storing energy in a spring motor H01H3/301)}
H01H3/24 (Using pneumatic or hydraulic actuator) appears on 103 US grants and 42 published applications in this corpus.
Search patents in H01H- Granted patents
- 103
- Published applications
- 42
- Assignees
- 77
- Inventors
- 207
- Latest grant
- 1 Apr 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 3 | 0 |
| 1980 | 5 | 0 |
| 1981 | 3 | 0 |
| 1982 | 4 | 0 |
| 1983 | 1 | 0 |
| 1984 | 3 | 0 |
| 1985 | 3 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 5 | 0 |
| 1989 | 5 | 0 |
| 1990 | 0 | 0 |
| 1991 | 5 | 0 |
| 1992 | 6 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 3 | 0 |
| 1996 | 3 | 0 |
| 1997 | 0 | 0 |
| 1998 | 5 | 0 |
| 1999 | 4 | 0 |
| 2000 | 3 | 0 |
| 2001 | 4 | 0 |
| 2002 | 3 | 2 |
| 2003 | 0 | 0 |
| 2004 | 2 | 1 |
| 2005 | 0 | 2 |
| 2006 | 1 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 2 |
| 2012 | 1 | 0 |
| 2013 | 1 | 3 |
| 2014 | 1 | 3 |
| 2015 | 0 | 1 |
| 2016 | 0 | 2 |
| 2017 | 6 | 2 |
| 2018 | 1 | 4 |
| 2019 | 2 | 1 |
| 2020 | 2 | 0 |
| 2021 | 0 | 2 |
| 2022 | 1 | 4 |
| 2023 | 2 | 5 |
| 2024 | 4 | 4 |
| 2025 | 3 | 0 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Hydraulic simultaneous multi-pole contact opening mechanism for circuit interrupters1 Apr 2025US 12,266,496 B2Eaton Intelligent Power Limited
- Excitation protection device acting step by step with single excitation source25 Mar 2025US 12,261,003 B2Xi' An Sinofuse Electric Co., Ltd.
- Switchgear and power converter21 Jan 2025US 12,205,785 B2Mitsubishi Electric Corporation
- Fuse and circuit system29 Oct 2024US 12,131,880 B2Xi' An Sinofuse Electric Co., Ltd.
- Superconducting magnet apparatus and method of operating same17 Sep 2024US 12,094,650 B2General Electric Renovables Espana, S.L.
- Dead Short Switch and Method of Use10 Sep 2026US 2026/0266144 A1Gunnar LLLP
- Alternating Current Disconnector for Subsea Operation26 Mar 2026US 2026/0088234 A1ABB Schweiz AG
- Switching device12 Dec 2024US 2024/0412934 A1Microtest S.p.A.
- Hydraulic simultaneous multi-pole contact opening mechanism for circuit interrupters31 Oct 2024US 2024/0363301 A1Eaton Intelligent Power Limited
- Excitation Protection Device Acting Step by Step with Single Excitation Source25 Jul 2024US 2024/0249899 A1Xi' An Sinofuse Electric Co., Ltd.
Most cited
By later US patents
- Load signaling device for a patient's foot179US 3,974,491 ASmithKline Corporation · 1976
- Suction-actuated control system for whirlpool bath/spa installations101US 5,570,481 AVico Products Manufacturing Co., Inc. · 1996
- Pneumatic ball contact switch76US 4,479,041 AGeneral Electric Company · 1984
- Pneumatic operating device for game machine70US 4,850,591 ACapcom Co., Ltd. · 1989
- Control unit for a medical device65US 5,879,298 ASiemens Aktiengesellschaft · 1999