F03B 3/14
Rotors having adjustable blades
Official title: Rotors having adjustable blades {(blade form or construction F03B3/123)}
F03B3/14 (Rotors having adjustable blades) appears on 68 US grants and 73 published applications in this corpus.
Search patents in F03B- Granted patents
- 68
- Published applications
- 73
- Assignees
- 54
- Inventors
- 172
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 0 |
| 2003 | 2 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 2 |
| 2009 | 1 | 0 |
| 2010 | 0 | 3 |
| 2011 | 1 | 3 |
| 2012 | 4 | 1 |
| 2013 | 1 | 5 |
| 2014 | 1 | 6 |
| 2015 | 0 | 4 |
| 2016 | 2 | 6 |
| 2017 | 4 | 4 |
| 2018 | 1 | 4 |
| 2019 | 4 | 2 |
| 2020 | 3 | 5 |
| 2021 | 11 | 6 |
| 2022 | 3 | 6 |
| 2023 | 1 | 1 |
| 2024 | 6 | 6 |
| 2025 | 7 | 3 |
| 2026 | 1 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Turbine device, power apparatus and power integrated system of electric power system16 Jun 2026US 12,655,824 B2
- Actuating device23 Sep 2025US 12,421,932 B1
- Reactive, reversible blade turbine for power generation and pumping water16 Sep 2025US 12,416,283 B2
- Marine current turbine platform with faired spar19 Aug 2025US 12,392,316 B1Aquantis, Inc.
- Basic mechanism for converting fluid energy into mechanical energy13 May 2025US 12,297,799 B2
- Hydroelectric power generation device and power generation method based on axial-flow hydraulic turbine1 Oct 2026US 2026/0298190 A1Hebei Water Conservancy Engr Bureau Group Limited
- Power integrated system of electric power system17 Sep 2026US 2026/0275961 A1
- Bi-directional wave energy converter21 May 2026US 2026/0139655 A1Felicianne AS
- Air-filled kaplan runner19 Feb 2026US 2026/0049590 A1GE Renewable Technologies
- Hydraulic turbine1 Jan 2026US 2026/0002507 A1Natel Energy Holdings, Inc.
Most cited
By later US patents
- Hydro-turbine runner26US 5,954,474 AVoith Hydro, Inc. · 1999
- Apparatus for hydroelectric power production expansion26US 7,478,974 B12009
- Adjustable blade turbines22US 5,947,679 AVoith Hydro, Inc. · 1999
- Device in fluid pressure generators20US 4,648,788 A1987
- Turbine and hydroelectric power plant for very low head15US 7,972,108 B22011