H02J 1/02
Arrangements for reducing harmonics or ripples
H02J1/02 (Arrangements for reducing harmonics or ripples) appears on 191 US grants and 206 published applications in this corpus.
Search patents in H02J- Granted patents
- 191
- Published applications
- 206
- Assignees
- 166
- Inventors
- 498
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 3 | 0 |
| 1997 | 0 | 0 |
| 1998 | 5 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 3 | 5 |
| 2003 | 3 | 1 |
| 2004 | 4 | 4 |
| 2005 | 2 | 2 |
| 2006 | 0 | 1 |
| 2007 | 3 | 3 |
| 2008 | 1 | 0 |
| 2009 | 2 | 3 |
| 2010 | 1 | 1 |
| 2011 | 1 | 3 |
| 2012 | 3 | 3 |
| 2013 | 3 | 6 |
| 2014 | 3 | 6 |
| 2015 | 5 | 14 |
| 2016 | 6 | 8 |
| 2017 | 9 | 13 |
| 2018 | 15 | 15 |
| 2019 | 18 | 11 |
| 2020 | 11 | 18 |
| 2021 | 17 | 16 |
| 2022 | 20 | 21 |
| 2023 | 15 | 12 |
| 2024 | 8 | 9 |
| 2025 | 12 | 17 |
| 2026 | 7 | 14 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Passive-type harmonic removal device and method for manufacturing same6 Oct 2026US 12,755,873 B2The Thinking Lion Co., Ltd.
- Adaptive filter with Y capacitors for a 3-phase DC on-board electrical system18 Aug 2026US 12,712,446 B2Valeo eAutomotive Germany GmbH
- Power supply equipment and method of operating the same4 Aug 2026US 12,700,728 B2Delta Electronics, Inc.
- Uninterruptible power supply2 Jun 2026US 12,646,965 B2ABB Schweiz AG
- Power system and power system control method19 May 2026US 12,633,772 B2Huawei Digital Power Technologies Co., Ltd.
- Electrolysis system comprising an electrolysis plant and a renewable energy plant and method for controlling an electrolysis system3 Sep 2026US 2026/0261119 A1Siemens Energy Global GmbH & Co. KG
- Circuit and motor resistant to voltage sag30 Jul 2026US 2026/0221915 A1Schneider Electric Industries SAS
- Electrical system and related skid16 Jul 2026US 2026/0200354 A19479-9194 Québec inc.
- Voltage compensation system and uninterruptible power supply16 Jul 2026US 2026/0204942 A1Delta Electronics, Inc.
- Adaptive filter with y capacitors for a 3-phase dc on-board electrical system11 Jun 2026US 2026/0158921 A1Valeo eAutomotive Germany GmbH
Most cited
By later US patents
- High efficiency lighting system265US 6,933,627 B2Nextek Power Systems, Inc. · 2005
- Method and apparatus for suppressing time-varying signals in batteries undergoing charging or discharging233US 5,343,380 A1994
- Method of and apparatus for power management and distribution in a medical imaging system99US 5,808,376 AAnalogic Corporation · 1998
- Power source system55US 4,308,575 ATokyo Shibaura Denki Kabushiki Kaisha · 1981
- Ripple cancellation circuit for ultra-low-noise power supplies45US 6,693,805 B1Lockheed Martin Corporation · 2004