F24F 2221/46
Air flow forming a vortex
F24F2221/46 (Air flow forming a vortex) appears on 36 US grants and 49 published applications in this corpus.
Search patents in F24F- Granted patents
- 36
- Published applications
- 49
- Assignees
- 34
- Inventors
- 99
- Latest grant
- 14 Jan 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 1 |
| 2003 | 3 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 2 |
| 2006 | 1 | 3 |
| 2007 | 2 | 2 |
| 2008 | 1 | 1 |
| 2009 | 1 | 0 |
| 2010 | 0 | 3 |
| 2011 | 0 | 2 |
| 2012 | 0 | 1 |
| 2013 | 1 | 1 |
| 2014 | 0 | 2 |
| 2015 | 1 | 0 |
| 2016 | 2 | 0 |
| 2017 | 1 | 3 |
| 2018 | 1 | 3 |
| 2019 | 2 | 3 |
| 2020 | 1 | 1 |
| 2021 | 2 | 7 |
| 2022 | 6 | 5 |
| 2023 | 2 | 2 |
| 2024 | 4 | 0 |
| 2025 | 1 | 6 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Active airflow inhibiting apparatus14 Jan 2025US 12,196,451 B2Wirth Doors Limited
- Air shower apparatus31 Dec 2024US 12,179,241 B2
- Method and apparatus for air circulation and purification28 May 2024US 11,994,317 B2
- Electrospray vortical flow exchanger9 Apr 2024US 11,951,439 B2Auburn University
- Vortex ring generation device2 Jan 2024US 11,859,646 B2Daikin Industries, Ltd.
- Vortex Air Handling System5 Feb 2026US 2026/0036308 A1
- Airflow enhancement device for hvac systems11 Dec 2025US 2025/0377131 A1
- Toroidal Vortices For Temperature-Related and Non-Temperature-Related Functions8 May 2025US 2025/0146677 A1Samsung Electronics Co., Ltd.
- Air shower apparatus27 Feb 2025US 2025/0065379 A1
- Noise damper, in particular for an air conditioning system of a railway vehicle20 Feb 2025US 2025/0060127 A1ALSTOM Holdings
Most cited
By later US patents
- Air intake and blowing device60US 6,551,185 B1Daikin Industries, Ltd. · 2003
- Tornado type intake and blowing device28US 6,632,132 B1Daikin Industries, Ltd. · 2003
- Artificial tornado generating mechanism and method of utilizing generated artificial tornados27US 5,096,467 AJapan Air Curtain Company, Ltd. · 1992
- Suction and exhaust device26US 6,620,038 B1Daikin Industries, Ltd. · 2003
- Cooling and heating system for an equipment enclosure using a vortex tube25US 6,401,463 B1Marconi Communications, Inc. · 2002