F25B 9/04
Using vortex effect
Official title: using vortex effect
F25B9/04 (Using vortex effect) appears on 177 US grants and 143 published applications in this corpus.
Search patents in F25B- Granted patents
- 177
- Published applications
- 143
- Assignees
- 132
- Inventors
- 314
- Latest grant
- 13 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 3 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 4 | 0 |
| 1981 | 6 | 0 |
| 1982 | 5 | 0 |
| 1983 | 3 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 6 | 0 |
| 1997 | 3 | 0 |
| 1998 | 2 | 0 |
| 1999 | 4 | 0 |
| 2000 | 4 | 0 |
| 2001 | 4 | 2 |
| 2002 | 8 | 4 |
| 2003 | 1 | 2 |
| 2004 | 2 | 3 |
| 2005 | 0 | 2 |
| 2006 | 2 | 6 |
| 2007 | 2 | 3 |
| 2008 | 3 | 9 |
| 2009 | 2 | 8 |
| 2010 | 5 | 4 |
| 2011 | 0 | 6 |
| 2012 | 3 | 0 |
| 2013 | 4 | 1 |
| 2014 | 3 | 8 |
| 2015 | 3 | 8 |
| 2016 | 2 | 10 |
| 2017 | 10 | 12 |
| 2018 | 10 | 12 |
| 2019 | 11 | 10 |
| 2020 | 9 | 5 |
| 2021 | 10 | 8 |
| 2022 | 9 | 3 |
| 2023 | 4 | 2 |
| 2024 | 1 | 5 |
| 2025 | 2 | 4 |
| 2026 | 1 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Vortex tube including secondary inlet with swirl generator13 Jan 2026US 12,523,398 B2Khalifa University of Science and Technology
- Modular reflux sampler2 Dec 2025US 12,487,150 B2Kinetics Technology Corporation
- Thermoelectric generator system and method24 Jun 2025US 12,342,720 B2ROLLS-ROYCE plc
- Gas turbine engine3 Sep 2024US 12,078,106 B2ROLLS-ROYCE plc
- Heating, ventilation, and air-conditioning systems and methods12 Dec 2023US 11,841,179 B2Goodman Global Group, Inc.
- Vortex tube assembly, charger, and cooling system1 Oct 2026US 2026/0298505 A1Hyundai Motor Company
- Liquid water source collection apparatus, air conditioner, control method20 Aug 2026US 2026/0243464 A1Shenzhen Roborock Innovation Technology Co., Ltd.
- Adiabatic thermal regulator16 Jul 2026US 2026/0202103 A1Polytech Forge LLC
- Passive pressure amplification device16 Jul 2026US 2026/0202864 A1Polytech Forge LLC
- Venturi assisted bi-conical chamber, a toroidal venturi vortex system and a method of cooling30 Apr 2026US 2026/0118019 A1Unitech Synergies Limited
Most cited
By later US patents
- Auxiliary heating and air conditioning system for a motor vehicle139US 5,901,572 ARocky Research · 1999
- Dental apparatus126US 4,973,246 AA-dec, Inc. · 1990
- Rotatable heat transfer apparatus71US 6,158,237 AThe University of Nottingham · 2000
- Method and apparatus for gas sample analysis68US 4,191,541 AContainer Corporation of America · 1980
- Regenerative refrigeration system with mixed refrigerants43US 6,293,108 B1Vortex Aircon, Inc. · 2001