F05B 2270/1016
In variable speed operation
Official title: in variable speed operation
F05B2270/1016 (In variable speed operation) appears on 122 US grants and 101 published applications in this corpus.
Search patents in F05B- Granted patents
- 122
- Published applications
- 101
- Assignees
- 67
- Inventors
- 214
- Latest grant
- 11 Nov 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 6 | 0 |
| 1981 | 1 | 0 |
| 1982 | 3 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 3 | 0 |
| 1987 | 4 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 3 | 0 |
| 2002 | 1 | 3 |
| 2003 | 1 | 2 |
| 2004 | 0 | 5 |
| 2005 | 6 | 1 |
| 2006 | 2 | 5 |
| 2007 | 3 | 8 |
| 2008 | 5 | 6 |
| 2009 | 4 | 9 |
| 2010 | 5 | 9 |
| 2011 | 3 | 16 |
| 2012 | 18 | 9 |
| 2013 | 10 | 4 |
| 2014 | 1 | 3 |
| 2015 | 3 | 1 |
| 2016 | 2 | 2 |
| 2017 | 2 | 2 |
| 2018 | 1 | 0 |
| 2019 | 1 | 1 |
| 2020 | 5 | 4 |
| 2021 | 2 | 3 |
| 2022 | 3 | 3 |
| 2023 | 1 | 3 |
| 2024 | 2 | 1 |
| 2025 | 4 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Torque limiter based on current torque value11 Nov 2025US 12,467,431 B2Vestas Wind Systems A/S
- Power generation device24 Jun 2025US 12,341,464 B2Hitachi Mitsubishi Hydro Corporation
- Wind turbine control arrangement15 Apr 2025US 12,276,261 B2Siemens Gamesa Renewable Energy A/S
- Method for controlling boosted power output of a power generating unit18 Mar 2025US 12,253,064 B2Vestas Wind Systems A/S
- Hybrid power plant optimization for inclement weather26 Nov 2024US 12,155,340 B2Vestas Wind Systems A/S
- Torque limiter based on current torque value22 May 2025US 2025/0163884 A1Vestas Wind Systems A/S
- Power generation device26 Dec 2024US 2024/0429843 A1Hitachi Mitsubishi Hydro Corporation
- Wind turbine control arrangement8 Jun 2023US 2023/0175485 A1Siemens Gamesa Renewable Energy A/S
- Wind turbine and method of operating a wind turbine11 May 2023US 2023/0147903 A1General Electric Renovables Espana, S.L.
- Converting variable renewable energy to constant frequency electricity by a voltage regulated speed converter, a voltage-controlled motor generator set or a voltage converter12 Jan 2023US 2023/0011200 A1Differential Dynamics Corporation
Most cited
By later US patents
- Variable speed wind turbine with reduced power fluctuation and a static VAR mode of operation266US 5,225,712 AU.S. Windpower, Inc. · 1993
- Variable speed wind turbine245US 5,083,039 AU.S. Windpower, Inc. · 1992
- Variable speed wind turbine having a matrix converter159US 6,566,764 B2Vestas Wind Systems A/S, R&D · 2003
- Variable speed distributed drive train wind turbine system147US 7,042,110 B2Clipper Windpower Technology, Inc. · 2006
- Variable speed wind turbine generator with zero-sequence filter141US 5,798,632 AMidwest Research Institute · 1998