H02J 7/16
Regulation of the charging current or voltage by variation of field
H02J7/16 (Regulation of the charging current or voltage by variation of field) appears on 685 US grants and 459 published applications in this corpus.
Search patents in H02J- Granted patents
- 685
- Published applications
- 459
- Assignees
- 242
- Inventors
- 1,136
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 9 | 0 |
| 1977 | 7 | 0 |
| 1978 | 8 | 0 |
| 1979 | 5 | 0 |
| 1980 | 9 | 0 |
| 1981 | 15 | 0 |
| 1982 | 16 | 0 |
| 1983 | 16 | 0 |
| 1984 | 13 | 0 |
| 1985 | 5 | 0 |
| 1986 | 16 | 0 |
| 1987 | 16 | 0 |
| 1988 | 5 | 0 |
| 1989 | 6 | 0 |
| 1990 | 12 | 0 |
| 1991 | 3 | 0 |
| 1992 | 14 | 0 |
| 1993 | 13 | 0 |
| 1994 | 7 | 0 |
| 1995 | 5 | 0 |
| 1996 | 9 | 0 |
| 1997 | 13 | 0 |
| 1998 | 14 | 0 |
| 1999 | 14 | 0 |
| 2000 | 11 | 0 |
| 2001 | 10 | 3 |
| 2002 | 11 | 19 |
| 2003 | 10 | 12 |
| 2004 | 14 | 9 |
| 2005 | 10 | 13 |
| 2006 | 13 | 11 |
| 2007 | 17 | 18 |
| 2008 | 9 | 9 |
| 2009 | 7 | 8 |
| 2010 | 9 | 7 |
| 2011 | 9 | 12 |
| 2012 | 8 | 5 |
| 2013 | 10 | 20 |
| 2014 | 9 | 10 |
| 2015 | 13 | 11 |
| 2016 | 15 | 20 |
| 2017 | 10 | 31 |
| 2018 | 21 | 70 |
| 2019 | 55 | 38 |
| 2020 | 50 | 30 |
| 2021 | 27 | 30 |
| 2022 | 28 | 17 |
| 2023 | 16 | 14 |
| 2024 | 19 | 12 |
| 2025 | 12 | 16 |
| 2026 | 12 | 14 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H02J 7/24Using discharge tubes or semiconductor devices371
- H02J 7/163With special means for initiating or limiting the excitation current92
- H02J 7/18Due to variation of ohmic resistance in field circuit, using resistance switching15
- H02J 7/28Using magnetic devices with controllable degree of saturation in combination with controlled14
- H02J 7/22Due to variation of make-to-break ratio of intermittently-operating contacts9
- H02J 7/20Due to variation of continuously variable ohmic resistor1
- H02J 7/30Using armature-reaction-excited machines1
- H02J 7/26Using magnetic devices with controllable degree of saturation0
Recent patents
- Charging system22 Sep 2026US 12,744,393 B2Toyota Jidosha Kabushiki Kaisha
- Circuit combining functions of charging and activating motorcycle screen projection without an additional wearable device15 Sep 2026US 12,735,137 B1
- Four-wheel drive electrified vehicle with charging system utilizing motor and multiple inverters25 Aug 2026US 12,715,325 B2Hyundai Motor Company
- Power supply system14 Jul 2026US 12,683,409 B2Toyota Jidosha Kabushiki Kaisha
- Hybrid electrical power generator and battery charging system30 Jun 2026US 12,671,257 B1Nishati, Inc..
- Systems and methods of charging a vehicle battery13 Aug 2026US 2026/0233726 A1Scout Motors Inc.
- Regulator for a vehicle6 Aug 2026US 2026/0229902 A1Brp-Rotax GmbH & Co. KG
- Systems and methods for managing regenerative energy in a vehicle23 Jul 2026US 2026/0208618 A1GM Global Technology Operations LLC
- Hybrid electrical power generator and battery charging system23 Jul 2026US 2026/0213552 A1Nishati, Inc..
- System voltage ripple reduction23 Jul 2026US 2026/0213563 A1QUALCOMM Incorporated
Most cited
By later US patents
- Energy management system for automotive vehicle271US 6,331,762 B1Midtronics, Inc. · 2001
- Method and apparatus for voltage regulation depending on battery charge259US 5,280,232 ARobert Bosch GmbH · 1994
- Microcomputer controlled electronic alternator for vehicles240US 4,659,977 AChrysler Motors Corporation · 1987
- Battery voltage regulating system230US 4,641,079 ANippondenso Co., Ltd. · 1987
- Circuit for detecting and indicating faults and operating anomalies in a system for recharging electric accumulators191US 4,412,169 AMarelli Autronica S.p.A. · 1983