H02H 9/007
Avoiding or damping oscillations
Official title: {avoiding or damping oscillations, e.g. fenoresonance or travelling waves}
H02H9/007 (Avoiding or damping oscillations) appears on 24 US grants and 20 published applications in this corpus.
Search patents in H02H- Granted patents
- 24
- Published applications
- 20
- Assignees
- 23
- Inventors
- 86
- Latest grant
- 14 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 1 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 2 |
| 2012 | 0 | 0 |
| 2013 | 1 | 1 |
| 2014 | 0 | 2 |
| 2015 | 0 | 0 |
| 2016 | 1 | 0 |
| 2017 | 2 | 1 |
| 2018 | 0 | 0 |
| 2019 | 1 | 0 |
| 2020 | 1 | 3 |
| 2021 | 2 | 2 |
| 2022 | 2 | 0 |
| 2023 | 1 | 1 |
| 2024 | 2 | 4 |
| 2025 | 3 | 2 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Electrical damping device for a DC voltage bus14 Jul 2026US 12,683,385 B2Deere & Company
- Transient voltage absorbing element and transient voltage absorbing circuit10 Jun 2025US 12,327,999 B2Murata Manufacturing Co., Ltd.
- Noise filter6 May 2025US 12,294,347 B2Mitsubishi Electric Corporation
- Suppression of signal transmission over a conductor8 Apr 2025US 12,271,477 B2Lodestone LLC
- Suppression of signal transmission over a conductor25 Jun 2024US 12,019,751 B2Lodestone LLC
- Bidirectional current limiting circuits27 Aug 2026US 2026/0254229 A1ROLLS-ROYCE plc
- Suppression of signal transmission over a conductor10 Jul 2025US 2025/0225245 A1Lodestone LLC
- Electrical damping device for a dc voltage bus29 May 2025US 2025/0174983 A1Deere & Company
- Suppression of signal transmission over a conductor12 Sep 2024US 2024/0303338 A1Lodestone LLC
- Ferromagnetic harmonic elimination method for active matched resistance voltage transformer based on pid adjustment29 Feb 2024US 2024/0072531 A1Qujing Power Supply Bureau of Yunnan Power Grid Co., Ltd
Most cited
By later US patents
- Protection system for medium-voltage potential transformers18US 7,558,032 B2ABB Research Ltd. · 2009
- D-C commutator motor with means for interference suppression14US 4,795,951 ASiemens Aktiengesellschaft · 1989
- Electrical dampening circuit for dampening resonance of a power signal in a power distribution network14US 5,343,381 AHydro-Quebec · 1994
- Series protection circuit9US 5,513,060 ASGS-Thomson Microelectronics S.A. · 1996
- Low leakage filtered power supply6US 4,428,018 AHigh Stoy Technological Corporation · 1984