F05B 2250/33
Symmetrical
Official title: symmetrical
F05B2250/33 (Symmetrical) appears on 27 US grants and 28 published applications in this corpus.
Search patents in F05B- Granted patents
- 27
- Published applications
- 28
- Assignees
- 23
- Inventors
- 62
- Latest grant
- 14 Jan 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 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 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 1 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 1 |
| 2011 | 0 | 3 |
| 2012 | 1 | 0 |
| 2013 | 2 | 1 |
| 2014 | 2 | 2 |
| 2015 | 0 | 0 |
| 2016 | 1 | 0 |
| 2017 | 1 | 3 |
| 2018 | 1 | 1 |
| 2019 | 1 | 3 |
| 2020 | 2 | 3 |
| 2021 | 3 | 4 |
| 2022 | 3 | 1 |
| 2023 | 1 | 1 |
| 2024 | 2 | 2 |
| 2025 | 1 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Self-charging autonomous submersible vessel14 Jan 2025US 12,195,142 B2Lone Gull Holdings, Ltd.
- Fluid turbine with aero-elastic damping8 Oct 2024US 12,110,859 B1
- Vortex generator for wind turbine blade, wind turbine blade and wind power generating apparatus, and method for manufacturing wind turbine blade17 Sep 2024US 12,092,072 B2Mitsubishi Heavy Industries, Ltd.
- Rotary connection for a rotor blade of a wind turbine31 Jan 2023US 11,566,599 B2
- Width-adjustable packaging bag shaper, bag maker, packaging machine and method18 Oct 2022US 11,472,588 B2Ningbo Sanhan Alloy Material Co., Ltd.
- Kinetic and potential energy ocean turbine13 Aug 2026US 2026/0235101 A1Poseidon Intellectualp S.A.S.
- Fluid turbine with aero-elastic damping10 Oct 2024US 2024/0337238 A1
- Self-charging autonomous submersible vessel28 Mar 2024US 2024/0101229 A1Lone Gull Holdings, Ltd.
- Vortex generator for wind turbine blade, wind turbine blade and wind power generating apparatus, and method for manufacturing wind turbine blade28 Dec 2023US 2023/0417217 A1Mitsubishi Heavy Industries, Ltd.
- Systems and methods for generating electrical energy3 Feb 2022US 2022/0034291 A1Waterotor Energy Technologies Inc.
Most cited
By later US patents
- Dual hydroturbine unit92US 6,168,373 A2001
- Symmetric tidal station48US 4,468,153 A1984
- Spinner with continuous 3-fold symmetry for multiple utilitarian, educational and ornamental uses18US 6,364,614 B1Hi-Q Products · 2002
- Spinner with continuous 3-fold symmetry for multiple utilitarian, educational and ornamental uses15US 6,524,073 B2Hi-Q Products · 2003
- Impulse turbine for use in bi-directional flows15US 8,596,955 B2Peter Brotherhood Limited · 2013