F03B 15/12
With retroactive action
Official title: with retroactive action
F03B15/12 (With retroactive action) appears on 20 US grants and 15 published applications in this corpus.
Search patents in F03B- Granted patents
- 20
- Published applications
- 15
- Assignees
- 11
- Inventors
- 31
- Latest grant
- 14 Jan 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 2 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 1 | 1 |
| 2016 | 2 | 1 |
| 2017 | 0 | 2 |
| 2018 | 1 | 2 |
| 2019 | 3 | 1 |
| 2020 | 1 | 2 |
| 2021 | 3 | 1 |
| 2022 | 0 | 1 |
| 2023 | 1 | 0 |
| 2024 | 0 | 0 |
| 2025 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Method and system for calculating stability margin domain of control parameters of hydraulic turbine regulating system14 Jan 2025US 12,196,174 B1Huazhong University of Science and Technology
- Hydroelectric power generation system18 Jul 2023US 11,703,028 B2Daikin Industries, Ltd.
- Voltage converter-controlled damless hydrokinetic river turbines7 Sep 2021US 11,111,898 B2Differential Dynamics Corporation
- River and tidal turbine with power control20 Apr 2021US 10,982,645 B2Differential Dynamics Corporation
- Expandable power marine hydrokinetic turbines, pumps, compressors and transmissions16 Mar 2021US 10,947,956 B2Differential Dynamics Corporation
- Remote-controlled modular hydropower generator system13 Mar 2025US 2025/0084822 A1
- Hydroelectric power generation system13 Jan 2022US 2022/0010764 A1Daikin Industries, Ltd.
- Voltage converter-controlled damless hydrokinetic river turbines17 Jun 2021US 2021/0180559 A1Differential Dynamics Corporation
- Concentric Wing Turbines18 Jun 2020US 2020/0191120 A1Differential Dynamics Corporation
- Expandable Power Marine Hydrokinetic Turbines, Pumps, Compressors and Transmissions19 Mar 2020US 2020/0088156 A1Differential Dynamics Corporation
Most cited
By later US patents
- Method and apparatus for control of a turbine generator50US 4,496,845 ACla-Val Co. · 1985
- Method and apparatus for optimizing performance of a kaplan turbine30US 5,754,446 AVoith Hydro, Inc. · 1998
- Method for optimizing the efficiency of a set of machines comprising a turbine and a generator24US 5,402,332 AJ. M. Voith GmbH · 1995
- Apparatus for controlling the operation of a water turbine or a pump turbine and a method thereof12US 4,475,865 ATokyo Shibaura Denki Kabushiki Kaisha · 1984
- Run-of-the-river or ocean current turbine11US 9,151,269 B2Differential Dynamics Corporation · 2015