H02H 7/18
Emergency protective circuit arrangements specially adapted for specific types of electric machines
Official title: for batteries; for accumulators
H02H7/18 (Emergency protective circuit arrangements specially adapted for specific types of electric machines) appears on 705 US grants and 889 published applications in this corpus.
Search patents in H02H- Granted patents
- 705
- Published applications
- 889
- Assignees
- 407
- Inventors
- 1,911
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 4 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 5 | 0 |
| 1998 | 2 | 0 |
| 1999 | 6 | 0 |
| 2000 | 6 | 0 |
| 2001 | 12 | 0 |
| 2002 | 7 | 3 |
| 2003 | 5 | 5 |
| 2004 | 0 | 1 |
| 2005 | 5 | 10 |
| 2006 | 3 | 14 |
| 2007 | 7 | 14 |
| 2008 | 6 | 6 |
| 2009 | 11 | 7 |
| 2010 | 13 | 10 |
| 2011 | 6 | 9 |
| 2012 | 5 | 18 |
| 2013 | 10 | 34 |
| 2014 | 24 | 34 |
| 2015 | 22 | 59 |
| 2016 | 26 | 36 |
| 2017 | 34 | 44 |
| 2018 | 48 | 58 |
| 2019 | 51 | 76 |
| 2020 | 60 | 60 |
| 2021 | 60 | 50 |
| 2022 | 46 | 67 |
| 2023 | 41 | 75 |
| 2024 | 58 | 79 |
| 2025 | 59 | 62 |
| 2026 | 40 | 58 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Monitoring device for a high-voltage onboard electrical system, and method for operating a monitoring device6 Oct 2026US 12,754,224 B2Infineon Technologies AG
- Power supply device and power supply control circuit29 Sep 2026US 12,749,906 B2Panasonic Energy Co., Ltd.
- Battery pack control apparatus and method for fixing failure of relay1 Sep 2026US 12,726,016 B2Samsung SDI.Co., Ltd.
- Battery condition monitoring device and method, and battery protection device25 Aug 2026US 12,716,949 B2LG Energy Solution, Ltd.
- Overcurrent protection apparatus and protection method thereof25 Aug 2026US 12,719,259 B2Samsung SDI.Co., Ltd.
- Pyrotechnic battery disconnect system and associated operating method17 Sep 2026US 2026/0280274 A1Isabellenhuette Heusler GmbH & Co. KG
- Energy storage system and power source apparatus17 Sep 2026US 2026/0280275 A1Contemporary Amperex Technology Co., Limited
- Voltage detection circuit and voltage detection method10 Sep 2026US 2026/0269594 A1Eve Energy Co., Ltd.
- Short-circuit protection with a semiconductor switch27 Aug 2026US 2026/0249701 A1Siemens Mobility GmbH
- Vehicle battery apparatus and method therefor20 Aug 2026US 2026/0246122 A1Knorr-Bremse GmbH
Most cited
By later US patents
- Silicon equivalent PTC circuit385US 6,340,878 B12002
- Method and system for battery protection employing a selectively-actuated switch136US 7,157,882 B2Milwaukee Electric Tool Corporation · 2007
- Devices and methods for protection of rechargeable elements96US 6,331,763 B1Tyco Electronics Corporation · 2001
- Digital circuit interrupter with battery back-up facility90US 5,485,343 AGeneral Electric Company · 1996
- Apparatus for controlling battery discharge88US 5,694,020 ABraun GmbH · 1997