H02H 7/05
For capacitive voltage transformers
Official title: for capacitive voltage transformers, e.g. against resonant conditions
H02H7/05 (For capacitive voltage transformers) appears on 8 US grants and 4 published applications in this corpus.
Search patents in H02H- Granted patents
- 8
- Published applications
- 4
- Assignees
- 5
- Inventors
- 32
- Latest grant
- 30 Apr 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 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 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 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 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 1 |
| 2019 | 0 | 0 |
| 2020 | 1 | 1 |
| 2021 | 1 | 0 |
| 2022 | 0 | 1 |
| 2023 | 2 | 0 |
| 2024 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Ferromagnetic harmonic elimination method for active matched resistance voltage transformer based on PID adjustment30 Apr 2024US 11,973,337 B2Qujing Power Supply Bureau of Yunnan Power Grid Co., Ltd
- PT ferromagnetic resonance elimination method implemented by actively inputting resistance through electronic load21 Nov 2023US 11,824,348 B1Qujing Power Supply Bureau of Yunnan Power Grid Co., Ltd
- Capacitance-coupled voltage transformer monitoring16 May 2023US 11,650,264 B2Schweitzer Engineering Laboratories, Inc.
- Capacitance-coupled voltage transformer monitoring30 Nov 2021US 11,187,727 B2Schweitzer Engineering Laboratories, Inc.
- Vehicle accessory power switch22 Sep 2020US 10,784,675 B2Drive Creek 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
- Capacitance-coupled voltage transformer monitoring10 Feb 2022US 2022/0043070 A1Schweitzer Engineering Laboratories, Inc.
- Capacitance-coupled voltage transformer monitoring29 Oct 2020US 2020/0341035 A1Schweitzer Engineering Laboratories, Inc.
- Vehicle accessory power switch25 Jan 2018US 2018/0026437 A1Drive Creek LLC
Most cited
By later US patents