H01H 3/26
Using dynamo-electric motor
Official title: using dynamo-electric motor (for storing energy in a spring motor H01H3/30)
H01H3/26 (Using dynamo-electric motor) appears on 263 US grants and 209 published applications in this corpus.
Search patents in H01H- Granted patents
- 263
- Published applications
- 209
- Assignees
- 155
- Inventors
- 614
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 3 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 5 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 6 | 0 |
| 1989 | 3 | 0 |
| 1990 | 4 | 0 |
| 1991 | 4 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 5 | 0 |
| 1995 | 4 | 0 |
| 1996 | 3 | 0 |
| 1997 | 5 | 0 |
| 1998 | 7 | 0 |
| 1999 | 8 | 0 |
| 2000 | 7 | 0 |
| 2001 | 6 | 3 |
| 2002 | 3 | 3 |
| 2003 | 3 | 3 |
| 2004 | 5 | 4 |
| 2005 | 5 | 7 |
| 2006 | 5 | 3 |
| 2007 | 3 | 7 |
| 2008 | 2 | 2 |
| 2009 | 5 | 8 |
| 2010 | 4 | 4 |
| 2011 | 5 | 4 |
| 2012 | 4 | 5 |
| 2013 | 8 | 7 |
| 2014 | 7 | 12 |
| 2015 | 14 | 14 |
| 2016 | 6 | 5 |
| 2017 | 10 | 8 |
| 2018 | 6 | 6 |
| 2019 | 9 | 14 |
| 2020 | 6 | 8 |
| 2021 | 8 | 8 |
| 2022 | 12 | 27 |
| 2023 | 9 | 17 |
| 2024 | 22 | 13 |
| 2025 | 14 | 7 |
| 2026 | 6 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Switch8 Sep 2026US 12,731,738 B2Mitsubishi Electric Corporation
- Switchgear2 Jun 2026US 12,646,909 B2ABB Schweiz AG
- Switch assembly comprising an on-load tap changer and a drive system14 Apr 2026US 12,603,235 B2Maschinenfabrik Reinhausen GmbH
- Control method for an oven24 Mar 2026US 12,588,108 B2Eika, S.Coop.
- Motor assembly and circuit breaker comprising same3 Mar 2026US 12,567,545 B2Ls Electric Co., Ltd.
- Dead Short Switch and Method of Use10 Sep 2026US 2026/0266144 A1Gunnar LLLP
- Switching Device and Energy Storage System10 Sep 2026US 2026/0269156 A1
- Automatic transfer switch13 Aug 2026US 2026/0237571 A1Kutai Electronics Industry Co., Ltd.
- Battery configuration contactor assembly13 Aug 2026US 2026/0237572 A1Sensata Technologies, Inc.
- Operating mechanism for a switching device25 Jun 2026US 2026/0177135 A1Hitachi Energy Ltd
Most cited
By later US patents
- Electromechanically controlled automatic transfer switch and bypass switch assembly74US 4,423,336 AMcGraw-Edison Company · 1983
- Automatic transfer switch70US 4,398,097 AIndian Head Inc. · 1983
- Transfer switch50US 5,397,868 AEaton Corporation · 1995
- Transfer switch46US 4,760,278 A1988
- Programmable wall switch actuator/timer45US 5,955,796 A1999