F03B 13/08
Machine or engine aggregates in dams or the like
Official title: Machine or engine aggregates in dams or the like; Conduits therefor {, e.g. diffusors (bulb groups F03B13/105)}
F03B13/08 (Machine or engine aggregates in dams or the like) appears on 264 US grants and 281 published applications in this corpus.
Search patents in F03B- Granted patents
- 264
- Published applications
- 281
- Assignees
- 121
- Inventors
- 445
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 5 | 0 |
| 1978 | 5 | 0 |
| 1979 | 6 | 0 |
| 1980 | 5 | 0 |
| 1981 | 5 | 0 |
| 1982 | 7 | 0 |
| 1983 | 4 | 0 |
| 1984 | 7 | 0 |
| 1985 | 1 | 0 |
| 1986 | 4 | 0 |
| 1987 | 2 | 0 |
| 1988 | 5 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 2 | 0 |
| 2003 | 3 | 1 |
| 2004 | 1 | 5 |
| 2005 | 3 | 4 |
| 2006 | 3 | 2 |
| 2007 | 2 | 6 |
| 2008 | 6 | 9 |
| 2009 | 1 | 7 |
| 2010 | 6 | 13 |
| 2011 | 8 | 14 |
| 2012 | 6 | 14 |
| 2013 | 6 | 9 |
| 2014 | 11 | 12 |
| 2015 | 7 | 13 |
| 2016 | 2 | 10 |
| 2017 | 13 | 18 |
| 2018 | 5 | 16 |
| 2019 | 13 | 11 |
| 2020 | 16 | 22 |
| 2021 | 15 | 13 |
| 2022 | 9 | 19 |
| 2023 | 13 | 12 |
| 2024 | 15 | 29 |
| 2025 | 16 | 18 |
| 2026 | 11 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
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- Modular precast hydro dam with powerhouse28 Apr 2026US 12,612,751 B2W.L. French Hydropower Holdings LLC
- Hydrokinetic turbine and array performance optimization by dynamic tuning24 Sep 2026US 2026/0286927 A1Emrgy Inc.
- Energy storage system27 Aug 2026US 2026/0251115 A1
- A peripheral expanding chambers in flywheel engine generating and storing energy25 Jun 2026US 2026/0177026 A1
- Hydro-power generation for irrigation control11 Jun 2026US 2026/0163373 A1Rain Bird Corporation
- Gate linkage control method and device and parallel water supply and power generation system18 Dec 2025US 2025/0383673 A1China Institute of Water Resources and Hydropower Research
Most cited
By later US patents
- Fluid powered electrical generator260US 4,720,640 ATurboStar, Inc. · 1988
- Underwater ducted turbine101US 7,471,009 B2Clean Current Power Systems Incorporated · 2008
- System for converting the randomly variable energy of a natural fluid85US 4,149,092 ASociete Generale de Techniques et d'Etudes · 1979
- Combined turbine and generator80US 4,367,413 A1983
- Electric power generating system using ring-shaped generators60US 7,425,772 B22008