H02J 4/00
Circuit arrangements for mains or distribution networks not specified as ac or
Official title: Circuit arrangements for mains or distribution networks not specified as AC or DC; Circuit arrangements for mains or distribution networks combining AC and DC sections or sub-networks (arrangements using intermediate DC-AC-DC conversion H02J1/002; arrangements using high-voltage DC [HVDC] links H02J3/36)
H02J4/00 (Circuit arrangements for mains or distribution networks not specified as ac or) appears on 2,158 US grants and 2,585 published applications in this corpus.
Search patents in H02J- Granted patents
- 2,158
- Published applications
- 2,585
- Assignees
- 1,075
- Inventors
- 4,721
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 3 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 3 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 5 | 0 |
| 1994 | 3 | 0 |
| 1995 | 4 | 0 |
| 1996 | 5 | 0 |
| 1997 | 11 | 0 |
| 1998 | 6 | 0 |
| 1999 | 6 | 0 |
| 2000 | 2 | 0 |
| 2001 | 7 | 1 |
| 2002 | 8 | 10 |
| 2003 | 11 | 13 |
| 2004 | 8 | 18 |
| 2005 | 5 | 11 |
| 2006 | 7 | 27 |
| 2007 | 10 | 38 |
| 2008 | 14 | 48 |
| 2009 | 27 | 42 |
| 2010 | 33 | 58 |
| 2011 | 27 | 87 |
| 2012 | 50 | 93 |
| 2013 | 65 | 244 |
| 2014 | 106 | 320 |
| 2015 | 127 | 231 |
| 2016 | 210 | 221 |
| 2017 | 245 | 183 |
| 2018 | 218 | 168 |
| 2019 | 207 | 133 |
| 2020 | 151 | 124 |
| 2021 | 146 | 111 |
| 2022 | 126 | 95 |
| 2023 | 87 | 84 |
| 2024 | 88 | 71 |
| 2025 | 71 | 82 |
| 2026 | 41 | 72 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Systems and methods for fault management and protection22 Sep 2026US 12,742,810 B2ABL IP Holding LLC
- Feedback algorithms for manual bailout systems for surgical instruments15 Sep 2026US 12,733,931 B2Cilag GmbH International
- Apparatus, system and method of providing power in an office environment15 Sep 2026US 12,737,020 B2Jabil Inc.
- DC power distribution system and voltage stabilizer15 Sep 2026US 12,738,731 B2TMEIC Corporation
- AC/DC substation configurable between charging and powering modes8 Sep 2026US 12,728,735 B2Caterpillar Inc.
- Load control system responsive to sensors and mobile devices24 Sep 2026US 2026/0288106 A1Lutron Technology Company LLC
- Combining Newton-Raphson and Preconditioned Conjugate Gradient for Power Flow Analysis of Hybrid AC/DC Power Systems24 Sep 2026US 2026/0291255 A1Mitsubishi Electric Research Laboratories, Inc.
- Device Having a Multimode Antenna With Variable Width of Conductive Wire17 Sep 2026US 2026/0279661 A1NuCurrent, Inc.
- Electrical wiring devices, and circuits and systems for and methods of implementing electrical wiring devices17 Sep 2026US 2026/0280279 A1White Birch Solutions LLC
- Systems and methods for configurable solid state power controllers17 Sep 2026US 2026/0280307 A1
Most cited
By later US patents
- Modular powered surgical instrument with detachable shaft assemblies1,623US 9,743,929 B2Ethicon, Inc. · 2017
- Feedback algorithms for manual bailout systems for surgical instruments1,521US 10,028,761 B2Ethicon, Inc. · 2018
- Surgical stapling instrument system1,519US 9,750,499 B2Ethicon, Inc. · 2017
- Surgical instrument comprising a rotatable shaft1,314US 10,201,364 B2Ethicon, Inc. · 2019
- Apparatus, method and article for physical security of power storage devices in vehicles1,063US 8,560,147 B2Gogoro Inc. · 2013