F05B 2250/231
Cylindrical
Official title: cylindrical
F05B2250/231 (Cylindrical) appears on 63 US grants and 74 published applications in this corpus.
Search patents in F05B- Granted patents
- 63
- Published applications
- 74
- Assignees
- 49
- Inventors
- 151
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 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 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 2 |
| 2007 | 0 | 5 |
| 2008 | 2 | 1 |
| 2009 | 4 | 2 |
| 2010 | 0 | 6 |
| 2011 | 2 | 3 |
| 2012 | 3 | 1 |
| 2013 | 2 | 4 |
| 2014 | 0 | 2 |
| 2015 | 2 | 2 |
| 2016 | 2 | 2 |
| 2017 | 4 | 6 |
| 2018 | 2 | 6 |
| 2019 | 6 | 12 |
| 2020 | 4 | 5 |
| 2021 | 12 | 5 |
| 2022 | 3 | 3 |
| 2023 | 2 | 1 |
| 2024 | 2 | 2 |
| 2025 | 0 | 2 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Root bushing, wind turbine rotor blade and method28 Jul 2026US 12,692,832 B2Siemens Gamesa Renewable Energy Innovation & Technology S.L.
- Floating platform device for a wind turbine tower and assembly method16 Jun 2026US 12,655,828 B2Bluenewables Sl
- Ocean multitasking generator15 Oct 2024US 12,116,973 B1
- Wave energy converter9 Apr 2024US 11,952,974 B2Columbia Power Technologies, Inc.
- Arrangement for generating electric power made up of at least two rotating bodies of revolution partially immersed in a dynamic fluid; and a procedure for generating electric power using said arrangement12 Dec 2023US 11,843,308 B2
- Power conversion device connected to moving body21 May 2026US 2026/0139654 A1
- Mangrove inspired structures for energy harvesting26 Jun 2025US 2025/0207556 A1Florida Atlantic Unversity Board of Trustees
- Floating platform device for a wind turbine tower and assembly method24 Apr 2025US 2025/0129766 A1Bluenewables Sl
- Earth gravity powered electric generator28 Mar 2024US 2024/0102456 A1
- Wave energy converter14 Mar 2024US 2024/0084775 A1Columbia Power Technologies, Inc.
Most cited
By later US patents
- Fan inlet with curved lip and cylindrical member forming labyrinth seal58US 5,423,660 AAirflow Research and Manufacturing Corporation · 1995
- Water wheel with cylindrical blades54US 5,947,678 A1999
- Method for making cylindrical structures with cooling channels32US 5,822,853 AGeneral Electric Company · 1998
- Electric power generation equipment incorporating bulb turbine-generator30US 4,289,971 AFuji Electric Co., Ltd. · 1981
- Axially opening cylindrical bleed valve30US 5,380,151 APratt & Whitney Canada Corp. · 1995