H01H 29/22
Wherein contact is made and broken between liquid and solid
Official title: wherein contact is made and broken between liquid and solid
H01H29/22 (Wherein contact is made and broken between liquid and solid) appears on 40 US grants and 13 published applications in this corpus.
Search patents in H01H- Granted patents
- 40
- Published applications
- 13
- Assignees
- 17
- Inventors
- 55
- Latest grant
- 2 Sep 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 3 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 3 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 3 | 2 |
| 2004 | 1 | 2 |
| 2005 | 1 | 0 |
| 2006 | 3 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 2 | 2 |
| 2012 | 0 | 0 |
| 2013 | 1 | 1 |
| 2014 | 0 | 0 |
| 2015 | 1 | 0 |
| 2016 | 1 | 1 |
| 2017 | 0 | 1 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- High voltage bypass device, voltage source converter and operating method2 Sep 2025US 12,406,821 B2Hitachi Energy Ltd
- Impact switch22 Nov 2016US 9,502,196 B2ShockWatch, Inc.
- Impact switch17 Nov 2015US 9,190,229 B2ShockWatch, Inc.
- Method of manufacture of encapsulated gallium alloy containing switch30 Jul 2013US 8,496,995 B2Thermo Fisher Scientific Inc.
- Encapsulated switches employing mercury substitute and methods of manufacture thereof2 Aug 2011US 7,990,241 B2Thermo Fisher Scientific Inc.
- High voltage bypass device, voltage source converter and operating method3 Apr 2025US 2025/0112013 A1Hitachi Energy Ltd
- Non-reversible disconnection or break and make device for electrical appliances25 May 2017US 2017/0148595 A1Vlaamse Instelling Voor Technologisch Onderzoek (Vito)
- Impact switch17 Mar 2016US 2016/0079018 A1ShockWatch, Inc.
- Impact switch14 Nov 2013US 2013/0299322 A1ShockWatch, Inc.
- Encapsulated Switches Employing Mercury Substitute and Methods of Manufacture Thereof3 Nov 2011US 2011/0265938 A1Thermo Fisher Scientific Inc.
Most cited
By later US patents
- Pistol grip controller131US 4,425,488 A1984
- Non-metallic liquid tilt switch and circuitry103US 5,751,074 AEdward B. Prior & Associates · 1998
- Mercury electrode switch93US 4,434,337 AW. G/u/ nther GmbH · 1984
- Mercury switch with non-wettable electrodes90US 4,652,710 AThe United States of America as represented by the United States Department of Energy · 1987
- Distorted-pool mercury switch77US 4,628,161 A1986