F05B 2250/15
Spiral
Official title: spiral
F05B2250/15 (Spiral) appears on 64 US grants and 70 published applications in this corpus.
Search patents in F05B- Granted patents
- 64
- Published applications
- 70
- Assignees
- 46
- Inventors
- 142
- Latest grant
- 12 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 3 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 3 |
| 2003 | 1 | 1 |
| 2004 | 1 | 1 |
| 2005 | 0 | 1 |
| 2006 | 0 | 1 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 1 | 4 |
| 2010 | 1 | 5 |
| 2011 | 1 | 5 |
| 2012 | 1 | 6 |
| 2013 | 3 | 4 |
| 2014 | 2 | 4 |
| 2015 | 1 | 3 |
| 2016 | 2 | 1 |
| 2017 | 3 | 3 |
| 2018 | 2 | 7 |
| 2019 | 2 | 3 |
| 2020 | 7 | 3 |
| 2021 | 3 | 4 |
| 2022 | 0 | 3 |
| 2023 | 4 | 1 |
| 2024 | 3 | 2 |
| 2025 | 1 | 4 |
| 2026 | 4 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Spiral pathway rotor and system utilizing same12 May 2026US 12,624,680 B2
- Fluidic turbine structure24 Mar 2026US 12,584,458 B2Biomerenewables Inc.
- Fluid flow converter with support arrangement10 Feb 2026US 12,546,297 B2Enairon AB
- Fluid flow converter with interstage flow channel10 Feb 2026US 12,546,298 B2Enairon AB
- Wind power collection device, gas storage device, and power generation system2 Dec 2025US 12,486,826 B2Tranf Technology (Xiamen) Co., Ltd.
- Fluid flow converter with interstage flow channel3 Jul 2025US 2025/0215866 A1Enairon AB
- Fluid flow converter with support arrangement19 Jun 2025US 2025/0198400 A1Enairon AB
- Spiral pathway rotor and system utilizing same22 May 2025US 2025/0163897 A1
- Wind power collection device, gas storage device, and power generation system30 Jan 2025US 2025/0035084 A1Tranf Technology (Xiamen) Co., Ltd.
- Fluidic turbine structure19 Dec 2024US 2024/0418145 A1Biomerenewables Inc.
Most cited
By later US patents
- Combined solar and wind powered generator with spiral blades67US 5,254,876 A1993
- Combined solar and wind powered generator with spiral surface pattern64US 5,075,564 A1991
- System for controlling the flow of a fluid medium relative to an object39US 4,974,633 A1990
- Scroll-type fluid machine having the eccentric shaft inserted into the moving scroll39US 5,336,068 AMitsubishi Denki Kabushiki Kaisha · 1994
- Scroll compressor with axial vibration prevention for a shaft bearing36US 5,213,489 AMatsushita Electric Industrial Co., Ltd. · 1993