F05B 2270/101
To control rotational speed
Official title: to control rotational speed (n)
F05B2270/101 (To control rotational speed) appears on 322 US grants and 368 published applications in this corpus.
Search patents in F05B- Granted patents
- 322
- Published applications
- 368
- Assignees
- 173
- Inventors
- 713
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 2 | 0 |
| 1980 | 3 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 3 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 3 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 2 |
| 2003 | 4 | 2 |
| 2004 | 3 | 2 |
| 2005 | 2 | 2 |
| 2006 | 0 | 2 |
| 2007 | 7 | 10 |
| 2008 | 2 | 10 |
| 2009 | 8 | 25 |
| 2010 | 9 | 24 |
| 2011 | 20 | 19 |
| 2012 | 19 | 25 |
| 2013 | 11 | 19 |
| 2014 | 15 | 13 |
| 2015 | 9 | 18 |
| 2016 | 5 | 13 |
| 2017 | 15 | 20 |
| 2018 | 16 | 31 |
| 2019 | 26 | 26 |
| 2020 | 27 | 21 |
| 2021 | 22 | 23 |
| 2022 | 21 | 20 |
| 2023 | 16 | 15 |
| 2024 | 18 | 17 |
| 2025 | 15 | 6 |
| 2026 | 5 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Control device and method of controlling a wind turbine22 Sep 2026US 12,742,438 B2Siemens Gamesa Renewable Energy A/S
- Method and system for controlling wind turbine rotor oscillations21 Jul 2026US 12,687,153 B2GE Vernova Infrastructure Technology LLC
- Vehicle equipped with a wind power electricity generator21 Apr 2026US 12,606,010 B2Prata Bruno Design
- Sound vibration and friction limiting turbine generator gyroscope method and apparatus10 Feb 2026US 12,546,287 B2Airborne Motorworks Inc.
- Method for operating a wind turbine and wind turbine3 Feb 2026US 12,540,600 B2Nordex Energy GmbH
- Method for operating a wind turbine, control system for operating a wind turbine and wind turbine23 Jul 2026US 2026/0210329 A1Nordex Energy GmbH
- Method for operating a wind turbine and wind turbine14 May 2026US 2026/0132769 A1Nordex Energy GmbH
- Method and system for controlling wind turbine rotor oscillations29 Jan 2026US 2026/0028963 A1GE Vernova Renovables Espana, S.L.
- Wind Turbine25 Dec 2025US 2025/0389250 A1
- Integrated fan drive system for cooling tower9 Oct 2025US 2025/0314438 A1Prime Datum, Inc.
Most cited
By later US patents
- Speed control system for a variable speed wind turbine126US 5,289,041 AU.S. Windpower, Inc. · 1994
- Speed control system for a variable speed wind turbine104US 5,155,375 AU.S. Windpower, Inc. · 1992
- Wind turbine generator pitch control system102US 4,160,170 AUnited Technologies Corporation · 1979
- Multi-mode control system for wind turbines100US 4,193,005 AUnited Technologies Corporation · 1980
- Variable speed wind turbine84US 4,695,736 AUnited Technologies Corporation · 1987