H02H 7/265
Making use of travelling wave theory
Official title: {making use of travelling wave theory}
H02H7/265 (Making use of travelling wave theory) appears on 105 US grants and 83 published applications in this corpus.
Search patents in H02H- Granted patents
- 105
- Published applications
- 83
- Assignees
- 45
- Inventors
- 143
- Latest grant
- 19 Aug 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 6 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 3 | 0 |
| 1982 | 3 | 0 |
| 1983 | 3 | 0 |
| 1984 | 2 | 0 |
| 1985 | 3 | 0 |
| 1986 | 3 | 0 |
| 1987 | 0 | 0 |
| 1988 | 4 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 1 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 1 | 1 |
| 2010 | 0 | 0 |
| 2011 | 1 | 1 |
| 2012 | 0 | 0 |
| 2013 | 0 | 2 |
| 2014 | 3 | 2 |
| 2015 | 1 | 2 |
| 2016 | 3 | 6 |
| 2017 | 6 | 13 |
| 2018 | 4 | 17 |
| 2019 | 11 | 11 |
| 2020 | 12 | 4 |
| 2021 | 12 | 6 |
| 2022 | 6 | 6 |
| 2023 | 2 | 1 |
| 2024 | 6 | 3 |
| 2025 | 3 | 5 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Electrical power system19 Aug 2025US 12,395,091 B2ROLLS-ROYCE plc
- Early detection of defects on single-wire earth-return powerlines using a low-voltage sensing method22 Jul 2025US 12,366,599 B2Dx Tech Pty Ltd
- Fault classification and zone identification in a power transmission system15 Apr 2025US 12,278,472 B2Hitachi Energy Ltd
- Transient based method for identifying faults in a high / medium voltage electric power transmission system15 Oct 2024US 12,117,479 B2Supergrid Institute
- Method for protecting DC line impedance phase based on protection and control coordination13 Aug 2024US 12,062,907 B2Beijing Jiaotong University
- Method for ascertaining a fault location in an electrical supply system19 Mar 2026US 2026/0079194 A1Siemens Aktiengesellschaft
- Method and system for fault detection and prediction in electric grids27 Nov 2025US 2025/0362336 A1Safegrid Oy
- Early Detection of Defects on Single-Wire Earth-Return Powerlines Using a Low-Voltage Sensing Method13 Nov 2025US 2025/0347728 A1Dx Tech Pty Ltd
- Single-end traveling wave fault location estimation and results ordered using a local or remote terminal as reference9 Oct 2025US 2025/0314688 A1Schweitzer Engineering Laboratories, Inc.
- System and method for managing a fault in a power transmission network7 Aug 2025US 2025/0253644 A1GE Infrastructure Technology LLC
Most cited
By later US patents
- Traveling wave based relay protection191US 7,535,233 B2Cooper Technologies Company · 2009
- Single-ended transmission line fault locator117US 4,766,549 AElectric Power Research Institute, Inc. · 1988
- Determining location of faults in power transmission lines68US 4,499,417 AGeneral Electric Company · 1985
- Protection device for objects included in electrical power supply networks61US 3,956,671 AAllmanna Svenska Elektriska Aktiebolaget · 1976
- Digital electricity using carrier wave change detection59US 10,714,930 B1VoltServer, Inc. · 2020