F05B 2210/401
Upwards due to the buoyancy of compressed air
Official title: upwards due to the buoyancy of compressed air
F05B2210/401 (Upwards due to the buoyancy of compressed air) appears on 40 US grants and 36 published applications in this corpus.
Search patents in F05B- Granted patents
- 40
- Published applications
- 36
- Assignees
- 9
- Inventors
- 49
- Latest grant
- 14 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 4 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 1 | 2 |
| 2007 | 1 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 1 | 1 |
| 2012 | 1 | 3 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 1 | 1 |
| 2016 | 2 | 0 |
| 2017 | 0 | 1 |
| 2018 | 3 | 5 |
| 2019 | 4 | 2 |
| 2020 | 1 | 5 |
| 2021 | 3 | 5 |
| 2022 | 4 | 3 |
| 2023 | 4 | 2 |
| 2024 | 2 | 1 |
| 2025 | 1 | 1 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Buoyant power system method and apparatus14 Oct 2025US 12,442,354 B2Four Electronics LLC
- Buoyant power system method and apparatus24 Dec 2024US 12,173,680 B2Four Electrons LLC
- Solution mined cavity system5 Mar 2024US 11,920,550 B2
- Buoyant power system method and apparatus24 Oct 2023US 11,795,902 B2Four Electrons LLC
- Hydroelectricity production facility using changes in water column density to induce vertical flow3 Oct 2023US 11,772,754 B2
- Buoyancy-driven power generation device and its power generation method therfor23 Jul 2026US 2026/0210326 A1
- Buoyant power system method and apparatus27 Mar 2025US 2025/0101940 A1Four Electrons LLC
- Buoyant power system method and apparatus25 Jan 2024US 2024/0026852 A1Four Electrons LLC
- Hydroelectricity production facility using changes in water column density to induce vertical flow10 Aug 2023US 2023/0249785 A1
- Floating hydroelectric powerplant16 Mar 2023US 2023/0082285 A1Hydroelectric Corporation
Most cited
By later US patents
- Ultimate energy wheel drum46US 4,326,132 A1982
- Power unit41US 4,054,031 A1977
- Vapor buoyancy engine32US 4,196,590 A1980
- Hydroelectric power plant designed to transform the potential energy of compressed gas into mechanical and electrical energy through the potential energy of liquids31US 6,990,809 B22006
- Buoyancy engines25US 4,981,015 A1991