H02J 7/575
Parallel/serial switching of connection of batteries to charge or load circuit
Official title: {Parallel/serial switching of connection of batteries to charge or load circuit}
H02J7/575 (Parallel/serial switching of connection of batteries to charge or load circuit) appears on 1,276 US grants and 1,560 published applications in this corpus.
Search patents in H02J- Granted patents
- 1,276
- Published applications
- 1,560
- Assignees
- 705
- Inventors
- 2,922
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 2 | 0 |
| 1979 | 3 | 0 |
| 1980 | 0 | 0 |
| 1981 | 7 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 5 | 0 |
| 1988 | 0 | 0 |
| 1989 | 3 | 0 |
| 1990 | 0 | 0 |
| 1991 | 3 | 0 |
| 1992 | 7 | 0 |
| 1993 | 8 | 0 |
| 1994 | 6 | 0 |
| 1995 | 2 | 0 |
| 1996 | 10 | 0 |
| 1997 | 15 | 0 |
| 1998 | 25 | 0 |
| 1999 | 22 | 0 |
| 2000 | 31 | 0 |
| 2001 | 11 | 3 |
| 2002 | 9 | 4 |
| 2003 | 9 | 6 |
| 2004 | 5 | 4 |
| 2005 | 3 | 9 |
| 2006 | 1 | 7 |
| 2007 | 3 | 13 |
| 2008 | 2 | 16 |
| 2009 | 13 | 19 |
| 2010 | 8 | 14 |
| 2011 | 14 | 21 |
| 2012 | 14 | 38 |
| 2013 | 19 | 52 |
| 2014 | 13 | 49 |
| 2015 | 38 | 38 |
| 2016 | 47 | 73 |
| 2017 | 48 | 81 |
| 2018 | 66 | 95 |
| 2019 | 81 | 121 |
| 2020 | 89 | 137 |
| 2021 | 129 | 138 |
| 2022 | 110 | 149 |
| 2023 | 108 | 148 |
| 2024 | 112 | 134 |
| 2025 | 103 | 110 |
| 2026 | 65 | 81 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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Most cited
By later US patents
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- Charger for batteries of different type1,102US 5,187,422 AStryker Corporation · 1993
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