H02H 9/049
Circuit arrangements for limiting the number of protection devices
Official title: {Circuit arrangements for limiting the number of protection devices}
H02H9/049 (Circuit arrangements for limiting the number of protection devices) appears on 12 US grants and 10 published applications in this corpus.
Search patents in H02H- Granted patents
- 12
- Published applications
- 10
- Assignees
- 13
- Inventors
- 29
- Latest grant
- 21 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 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 | 1 |
| 2013 | 0 | 0 |
| 2014 | 1 | 0 |
| 2015 | 0 | 1 |
| 2016 | 0 | 1 |
| 2017 | 0 | 2 |
| 2018 | 2 | 0 |
| 2019 | 1 | 1 |
| 2020 | 0 | 1 |
| 2021 | 0 | 0 |
| 2022 | 1 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 1 |
| 2025 | 1 | 2 |
By publication year. Applications have been published since 2001.
Recent patents
- Linkage mechanism, base, and surge protection device21 Oct 2025US 12,451,688 B2Shanghai Chenzhu Instrument Co., Ltd.
- Surge protection device for the protection of multiple DC or AC power lines15 Mar 2022US 11,277,002 B2MERSEN USA EP Corp.
- Transient voltage suppressor having built-in-test capability for solid state power controllers2 Apr 2019US 10,250,033 B2Hamilton Sundstrand Corporation
- Shared transient voltage suppressor having built-in-test capability for solid state power controllers2 Oct 2018US 10,090,672 B2Hamilton Sundstrand Corporation
- Method for activating a control device27 Mar 2018US 9,928,979 B2Robert Bosch GmbH
- Technique to alter a high voltage for a lower voltage load21 Aug 2025US 2025/0266775 A1
- Surge protection circuit16 Jan 2025US 2025/0023342 A1AES Global Holdings PTE Ltd.
- Linkage mechanism, base, and surge protection device4 Jul 2024US 2024/0222966 A1Shanghai Chenzhu lnstrument Co.,Ltd
- Surge protection device for the protection of multiple dc or ac power lines19 Nov 2020US 2020/0366087 A1MERSEN USA EP Corp.
- Filter circuit23 May 2019US 2019/0157862 A1Pegatron Corporation
Most cited
By later US patents
- Method and apparatus for coupling multiple independent on-chip V.sub.dd busses to an ESD core clamp81US 5,654,862 ARockwell International Corporation · 1997
- Electrical isolation device13US 5,574,610 A1996
- Surge protection for signal transmission systems5US 4,449,157 ANorthern Telecom Limited · 1984
- Telephone protection circuit5US 4,947,426 AStandard Telephone and Cables Pty, Ltd. · 1990
- Sharing arrangement for surge protection circuitry3US 5,717,561 AThe Whitaker Corporation · 1998