F03B 13/181
For limited rotation
Official title: {for limited rotation}
F03B13/181 (For limited rotation) appears on 313 US grants and 317 published applications in this corpus.
Search patents in F03B- Granted patents
- 313
- Published applications
- 317
- Assignees
- 116
- Inventors
- 484
- Latest grant
- 26 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 6 | 0 |
| 1978 | 4 | 0 |
| 1979 | 6 | 0 |
| 1980 | 1 | 0 |
| 1981 | 5 | 0 |
| 1982 | 4 | 0 |
| 1983 | 10 | 0 |
| 1984 | 6 | 0 |
| 1985 | 4 | 0 |
| 1986 | 5 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 3 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 7 | 0 |
| 2002 | 0 | 3 |
| 2003 | 2 | 4 |
| 2004 | 2 | 4 |
| 2005 | 3 | 2 |
| 2006 | 4 | 6 |
| 2007 | 3 | 7 |
| 2008 | 9 | 16 |
| 2009 | 5 | 10 |
| 2010 | 9 | 20 |
| 2011 | 8 | 24 |
| 2012 | 8 | 17 |
| 2013 | 17 | 20 |
| 2014 | 13 | 22 |
| 2015 | 15 | 18 |
| 2016 | 12 | 17 |
| 2017 | 16 | 18 |
| 2018 | 18 | 13 |
| 2019 | 15 | 13 |
| 2020 | 14 | 12 |
| 2021 | 9 | 12 |
| 2022 | 10 | 12 |
| 2023 | 16 | 16 |
| 2024 | 12 | 14 |
| 2025 | 12 | 11 |
| 2026 | 4 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Ocean wave and tidal current energy conversion system26 May 2026US 12,637,997 B2
- Floating body21 Apr 2026US 12,607,162 B2
- Ocean wave power system and method27 Jan 2026US 12,535,047 B2
- Apparatus for producing electricity from a moving fluid and method20 Jan 2026US 12,529,353 B2Sine Delta AS
- Hybrid bifurcating wave energy converter2 Dec 2025US 12,486,823 B2Alliance for Sustainable Energy, LLC
- A wave energy converter system1 Oct 2026US 2026/0298191 A1Zoex Corporation
- Hydroelectric power harvesting apparatus6 Aug 2026US 2026/0226880 A1Oakes LTD
- Floating body16 Jul 2026US 2026/0201858 A1
- Buffer for tidal stream generation apparatus21 May 2026US 2026/0139656 A1
- Water-drawing structure for ocean energy generator12 Feb 2026US 2026/0043385 A1
Most cited
By later US patents
- Scavenger energy converter system its new applications and its control systems239US 6,327,994 B12001
- Water-mist blower cooling system and its new applications215US 6,293,121 B12001
- Water wave energy transducer102US 4,389,843 A1983
- Ocean wave power generator (a “modular power-producing network”)90US 6,647,716 B22003
- Method and apparatus for generating electric power by waves70US 4,490,621 AMuroran Institute of Technology · 1984