F05B 2220/7064
Of the alternating current type
Official title: of the alternating current (A.C.) type
F05B2220/7064 (Of the alternating current type) appears on 108 US grants and 136 published applications in this corpus.
Search patents in F05B- Granted patents
- 108
- Published applications
- 136
- Assignees
- 70
- Inventors
- 283
- Latest grant
- 14 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 1 | 0 |
| 2004 | 1 | 4 |
| 2005 | 0 | 2 |
| 2006 | 4 | 5 |
| 2007 | 3 | 5 |
| 2008 | 5 | 8 |
| 2009 | 5 | 4 |
| 2010 | 8 | 11 |
| 2011 | 5 | 14 |
| 2012 | 4 | 11 |
| 2013 | 5 | 5 |
| 2014 | 6 | 5 |
| 2015 | 1 | 2 |
| 2016 | 3 | 6 |
| 2017 | 5 | 6 |
| 2018 | 3 | 9 |
| 2019 | 5 | 8 |
| 2020 | 13 | 9 |
| 2021 | 8 | 5 |
| 2022 | 2 | 1 |
| 2023 | 4 | 5 |
| 2024 | 4 | 2 |
| 2025 | 1 | 3 |
| 2026 | 2 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Wave-powered unmanned undersea vehicle14 Jul 2026US 12,679,216 B1The United States of America as represented by the Secretary of the Navy
- Kinetic energy recovery wind-wave integrated system28 Apr 2026US 12,612,890 B2South China University of Technology
- Low flow microbial fuel cell and hydro-kinetic turbine30 Dec 2025US 12,510,049 B1
- Method of operating a wind turbine and control system24 Dec 2024US 12,173,692 B2Siemens Gamesa Renewable Energy Innovation & Technology S.L.
- Wind turbine electrical power generating system12 Nov 2024US 12,140,122 B2Siemens Gamesa Renewable Energy Innovation & Technology S.L.
- Subsea Electrical Energy Generation System21 May 2026US 2026/0139572 A1Petroleo Brasileiro S.A. - Petrobras
- Electrical power transport system and method21 May 2026US 2026/0142528 A1Siemens Gamesa Renewable Energy A/S
- Linear synchronous motor-based gravitational potential energy storage system26 Mar 2026US 2026/0085663 A1
- Power Generation System and Method26 Mar 2026US 2026/0085664 A1
- Low flow microbial fuel cell and hydro-kinetic turbine1 Jan 2026US 2026/0002511 A1The United States of America as represented by the Secretary of the Navy
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
- Wind powered system for generating electricity147US 4,565,929 AThe Boeing Company · 1986
- Wind turbine118US 5,315,159 AHolec Projects B.V. · 1994
- Multi-mode control system for wind turbines100US 4,193,005 AUnited Technologies Corporation · 1980