H01H 27/04
Insulating plug or plate inserted between normally closed contacts
H01H27/04 (Insulating plug or plate inserted between normally closed contacts) appears on 30 US grants and 17 published applications in this corpus.
Search patents in H01H- Granted patents
- 30
- Published applications
- 17
- Assignees
- 28
- Inventors
- 52
- Latest grant
- 4 Feb 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 3 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 1 | 0 |
| 2009 | 0 | 1 |
| 2010 | 1 | 3 |
| 2011 | 1 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 0 |
| 2014 | 1 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 2 |
| 2017 | 2 | 1 |
| 2018 | 1 | 1 |
| 2019 | 0 | 0 |
| 2020 | 1 | 2 |
| 2021 | 1 | 1 |
| 2022 | 2 | 1 |
| 2023 | 0 | 0 |
| 2024 | 1 | 2 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Pull tab with conductive pads4 Feb 2025US 12,216,141 B2Terumo Kabushiki Kaisha
- Power transmission switch26 Nov 2024US 12,154,745 B2Natures Generator Inc
- Electronic device with a switch to prevent over-discharging of device battery17 May 2022US 11,337,326 B2Samsung Electronics Co., Ltd.
- Power circuit shut off device4 Jan 2022US 11,217,939 B2Yazaki Corporation
- Safety switch10 Aug 2021US 11,087,933 B2Idec Corporation
- Power transmission switch25 Jul 2024US 2024/0249895 A1Natures Generator Inc
- Relay Bypass Mechanism6 Jun 2024US 2024/0186093 A1Solaredge Technologies Ltd.
- Pull tab with conductive pads16 Jun 2022US 2022/0187340 A1Terumo Kabushiki Kaisha
- Apparatus for preventing over-discharging and electronic apparatus comprising same6 May 2021US 2021/0136942 A1Samsung Electronics Co., Ltd.
- Power circuit shut off device10 Dec 2020US 2020/0388960 A1Yazaki Corporation
Most cited
By later US patents
- Reverse wiring indicator for GFCI receptacles114US 5,541,800 AHubbell Incorporated · 1996
- Pull out air gap switch for wallbox-mounted dimmer77US 7,365,282 B2Lutron Electronics Co., Inc. · 2008
- Multiple circuit interrupter for telecommunication system25US 4,115,665 ASocieta Italiana Telecomunicazioni Siemens S.p.A. · 1978
- Unitarily molded electrical connector housing with separable key25US 4,927,787 AMolex Incorporated · 1990
- Rotary pulse switch15US 4,145,585 AAlps Electric Co., Ltd. · 1979