patentgrepDocs Get an API key

H01H 21/58

Change-over switches without stable intermediate position

H01H21/58 (Change-over switches without stable intermediate position) appears on 10 US grants and 3 published applications in this corpus.

Search patents in H01H

Granted patents: 10
Published applications: 3
Assignees: 9
Inventors: 16
Latest grant: 13 Dec 2022

Filings by year

H01H 21/58: granted patents and published applications per publication year
Year	Granted patents	Published applications
1982	1	0
1983	0	0
1984	0	0
1985	1	0
1986	1	0
1987	1	0
1988	0	0
1989	1	0
1990	0	0
1991	0	0
1992	0	0
1993	1	0
1994	0	0
1995	0	0
1996	0	0
1997	0	0
1998	0	0
1999	1	0
2000	0	0
2001	0	0
2002	0	0
2003	0	0
2004	0	0
2005	0	0
2006	0	0
2007	0	0
2008	0	0
2009	0	0
2010	0	0
2011	0	0
2012	0	0
2013	0	0
2014	0	1
2015	0	0
2016	1	0
2017	0	0
2018	0	0
2019	1	1
2020	0	0
2021	0	0
2022	1	1

By publication year. Applications have been published since 2001.

Recent patents

Changeover switch13 Dec 2022US 11,527,369 B2Eaton Intelligent Power Limited
Electrical switch methods and apparatus5 Nov 2019US 10,468,212 B2Siemens Industry, Inc.
Transfer switch for sequentially derived system27 Dec 2016US 9,530,575 B2Reliance Controls Corporation
Operating mechanism for a five-pole phase inverter isolating switch10 Aug 1999US 5,936,213 AGEC Alsthom T & D SA
High-voltage change-over switch with linear movement30 Mar 1993US 5,197,604 AGeneral Electric CGR S.A.

Most cited

By later US patents