F03B 17/06
Machines or engines for liquids: other machines or engines: using liquid flow
Official title: using liquid flow {with predominantly kinetic energy conversion}, e.g. of swinging-flap type {, "run-of-river", "ultra-low head" (F03B13/264 takes precedence)}
F03B17/06 (Machines or engines for liquids: other machines or engines: using liquid flow) appears on 1,176 US grants and 1,530 published applications in this corpus.
Search patents in F03B- Granted patents
- 1,176
- Published applications
- 1,530
- Assignees
- 504
- Inventors
- 1,994
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 10 | 0 |
| 1978 | 4 | 0 |
| 1979 | 4 | 0 |
| 1980 | 12 | 0 |
| 1981 | 16 | 0 |
| 1982 | 5 | 0 |
| 1983 | 6 | 0 |
| 1984 | 4 | 0 |
| 1985 | 8 | 0 |
| 1986 | 4 | 0 |
| 1987 | 4 | 0 |
| 1988 | 6 | 0 |
| 1989 | 7 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 4 | 0 |
| 1993 | 1 | 0 |
| 1994 | 4 | 0 |
| 1995 | 5 | 0 |
| 1996 | 1 | 0 |
| 1997 | 3 | 0 |
| 1998 | 4 | 0 |
| 1999 | 6 | 0 |
| 2000 | 7 | 0 |
| 2001 | 9 | 2 |
| 2002 | 8 | 12 |
| 2003 | 11 | 9 |
| 2004 | 7 | 14 |
| 2005 | 10 | 20 |
| 2006 | 18 | 31 |
| 2007 | 13 | 42 |
| 2008 | 24 | 55 |
| 2009 | 25 | 62 |
| 2010 | 35 | 110 |
| 2011 | 48 | 103 |
| 2012 | 48 | 78 |
| 2013 | 63 | 95 |
| 2014 | 68 | 90 |
| 2015 | 51 | 72 |
| 2016 | 49 | 60 |
| 2017 | 75 | 72 |
| 2018 | 45 | 94 |
| 2019 | 66 | 85 |
| 2020 | 74 | 65 |
| 2021 | 55 | 61 |
| 2022 | 42 | 61 |
| 2023 | 44 | 57 |
| 2024 | 62 | 72 |
| 2025 | 68 | 69 |
| 2026 | 26 | 39 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Horizontally-oriented conical-helical hydrokinetic turbine11 Aug 2026US 12,704,105 B2
- Systems and methods for power distribution and harnessing of marine hydrokinetic energy14 Jul 2026US 12,680,528 B2Riahmedia Inc.
- Multi-piping spiral-pump for treating food items7 Jul 2026US 12,674,443 B2Lambhusasund Ehf.
- Suction cover device, and kinetic tidal power plant16 Jun 2026US 12,655,822 B2Energyminer GmbH
- Turbine device, power apparatus and power integrated system of electric power system16 Jun 2026US 12,655,824 B2
- Construction for cascade hydro power plant8 Oct 2026US 2026/0309120 A1
- Apparatus to convert hydrokinetic energy into electrical energy1 Oct 2026US 2026/0298194 A1
- Underwater anchoring devices, systems, and methods24 Sep 2026US 2026/0285446 A1Verterra Energy Inc.
- Mechanical energy generation system for sustainable clean energy17 Sep 2026US 2026/0275960 A1
- Combined breakwater and wave energy converter3 Sep 2026US 2026/0258777 A1
Most cited
By later US patents
- River turbine145US 3,986,787 A1976
- Method of controlling operating depth of an electricity-generating device having a tethered water current-driven turbine111US 6,091,161 ADehlsen Associates, LLC · 2000
- River and tidal power harvester107US 7,492,054 B22009
- Underwater ducted turbine101US 7,471,009 B2Clean Current Power Systems Incorporated · 2008
- Portable water-powered electric generator100US 4,868,408 A1989