H02H 7/062
For parallel connected generators
Official title: {for parallel connected generators}
H02H7/062 (For parallel connected generators) appears on 32 US grants and 19 published applications in this corpus.
Search patents in H02H- Granted patents
- 32
- Published applications
- 19
- Assignees
- 24
- Inventors
- 77
- Latest grant
- 6 Jun 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 5 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 1 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 3 |
| 2013 | 1 | 0 |
| 2014 | 1 | 4 |
| 2015 | 2 | 1 |
| 2016 | 1 | 1 |
| 2017 | 2 | 0 |
| 2018 | 1 | 3 |
| 2019 | 3 | 1 |
| 2020 | 1 | 2 |
| 2021 | 0 | 0 |
| 2022 | 1 | 1 |
| 2023 | 1 | 0 |
| 2024 | 0 | 1 |
| 2025 | 0 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Protection system and method for electrical power plant6 Jun 2023US 11,670,936 B2Halliburton Energy Services.Inc.
- Power conversion system1 Feb 2022US 11,239,664 B2Mitsubishi Electric Corporation
- Sensitive directional element for generator protection6 Oct 2020US 10,797,632 B2Schweitzer Engineering Laboratories, Inc.
- Modular electric power generating system with multistage axial flux generator19 Nov 2019US 10,483,886 B2Hamilton Sundstrand Corporation
- Method for protecting an electrical power system27 Aug 2019US 10,396,695 B2General Electric Company
- Method for monitoring and protecting an electrical hybridisation system against the risk of fire13 Aug 2026US 2026/0233851 A1Safran Electrical & Power
- Residual overcurrent protection6 Jun 2024US 2024/0186784 A1Hamilton Sundstrand Corporation
- Protection system and method for electrical power plant6 Oct 2022US 2022/0320852 A1Halliburton Energy Services.Inc.
- Power conversion system17 Dec 2020US 2020/0395758 A1Mitsubishi Electric Corporation
- Sensitive directional element for generator protection27 Feb 2020US 2020/0067445 A1Schweitzer Engineering Laboratories, Inc.
Most cited
By later US patents
- Electrical power system with fault tolerant control unit30US 4,409,635 AWestinghouse Electric Corp. · 1983
- Differential fault current protection of a multiprocessor controlled electric power generating system27US 4,321,645 ASundstrand Corporation · 1982
- Protective circuit for clutchless parallel generating system21US 4,488,198 ASundstrand Corporation · 1984
- Control and protection system for an installation for the combined production of electrical and thermal energy19US 4,275,311 AErcole Marelli & C. S.p.A. · 1981
- Parallel AC electrical system with differential protection immune to high current through faults17US 4,173,774 AWestinghouse Electric Corp. · 1979