F04D 15/0055
Rotors with adjustable blades
Official title: {Rotors with adjustable blades}
F04D15/0055 (Rotors with adjustable blades) appears on 29 US grants and 24 published applications in this corpus.
Search patents in F04D- Granted patents
- 29
- Published applications
- 24
- Assignees
- 16
- Inventors
- 48
- Latest grant
- 29 Jul 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 2 |
| 2004 | 1 | 0 |
| 2005 | 1 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 3 |
| 2009 | 0 | 1 |
| 2010 | 1 | 2 |
| 2011 | 0 | 1 |
| 2012 | 0 | 1 |
| 2013 | 2 | 0 |
| 2014 | 0 | 0 |
| 2015 | 1 | 0 |
| 2016 | 0 | 2 |
| 2017 | 1 | 0 |
| 2018 | 0 | 1 |
| 2019 | 3 | 4 |
| 2020 | 1 | 1 |
| 2021 | 2 | 0 |
| 2022 | 2 | 3 |
| 2023 | 1 | 0 |
| 2024 | 2 | 1 |
| 2025 | 1 | 1 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Compressible and expandable blade for a fluid pump29 Jul 2025US 12,372,092 B2Ecp Entwicklungsgesellschaft Mbh
- Compressible and expandable blade for a fluid pump28 May 2024US 11,994,133 B2Ecp Entwicklungsgesellschaft Mbh
- Flexible guide vane structure of mixed flow pump with adjustable flow area, mixed flow pump and adjustment method21 May 2024US 11,988,222 B2Jiangsu University
- Adjustable blade of impeller built-in electric pump31 Oct 2023US 11,802,567 B2Hefei Hengda Jianghai Pump Co., Ltd.
- Method for optimizing blade axis position of water pump under all operating conditions22 Nov 2022US 11,506,218 B2Yangzhou University
- Compressible and expandable blade for a fluid pump14 May 2026US 2026/0132792 A1Ecp Entwicklungsgesellschaft Mbh
- Compressible and expandable blade for a fluid pump9 Jan 2025US 2025/0012283 A1Ecp Entwicklungsgesellschaft Mbh
- Flexible guide vane structure of mixed flow pump with adjustable flow area, mixed flow pump and adjustment method8 Feb 2024US 2024/0044339 A1Jiangsu University
- Adjustable blade of impeller built-in electric pump29 Dec 2022US 2022/0412363 A1Hefei Hengda Jianghai Pump Co., Ltd.
- Compressible and expandable blade for a fluid pump21 Jul 2022US 2022/0228592 A1Ecp Entwicklungsgesellschaft Mbh
Most cited
By later US patents
- Compressible and expandable blade for a fluid pump67US 9,067,006 B2Ecp Entwicklungsgesellschaft Mbh · 2015
- Compressible and expandable blade for a fluid pump56US 11,268,521 B2Ecp Entwicklungsgesellschaft Mbh · 2022
- Controller for a motor and a method of controlling the motor55US 7,690,897 B2A. O. Smith Corporation · 2010
- Compressible and expandable blade for a fluid pump42US 10,330,101 B2Ecp Entwicklungsgesellschaft Mbh · 2019
- Underground drainage facility, vertical-shaft multi-stage adjustable vane pump, and method of running drainage pump20US 5,360,290 AHitachi, Ltd. · 1994