H02J 3/02
Circuit arrangements for ac mains or ac distribution networks: using a single
Official title: using a single network for simultaneous distribution of AC power at different frequencies
H02J3/02 (Circuit arrangements for ac mains or ac distribution networks: using a single) appears on 226 US grants and 263 published applications in this corpus.
Search patents in H02J- Granted patents
- 226
- Published applications
- 263
- Assignees
- 158
- Inventors
- 516
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 2 |
| 2003 | 1 | 1 |
| 2004 | 4 | 2 |
| 2005 | 1 | 3 |
| 2006 | 3 | 2 |
| 2007 | 0 | 2 |
| 2008 | 1 | 3 |
| 2009 | 3 | 0 |
| 2010 | 1 | 4 |
| 2011 | 0 | 5 |
| 2012 | 6 | 14 |
| 2013 | 1 | 9 |
| 2014 | 6 | 9 |
| 2015 | 10 | 11 |
| 2016 | 5 | 17 |
| 2017 | 13 | 17 |
| 2018 | 19 | 16 |
| 2019 | 21 | 19 |
| 2020 | 19 | 24 |
| 2021 | 26 | 14 |
| 2022 | 14 | 7 |
| 2023 | 16 | 29 |
| 2024 | 12 | 17 |
| 2025 | 29 | 24 |
| 2026 | 10 | 12 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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