F24F 8/133
By direct contact with liquid
Official title: by direct contact with liquid, e.g. with sprayed liquid
F24F8/133 (By direct contact with liquid) appears on 90 US grants and 110 published applications in this corpus.
Search patents in F24F- Granted patents
- 90
- Published applications
- 110
- Assignees
- 62
- Inventors
- 229
- Latest grant
- 9 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 5 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 2 |
| 2004 | 1 | 3 |
| 2005 | 4 | 4 |
| 2006 | 2 | 10 |
| 2007 | 0 | 2 |
| 2008 | 5 | 1 |
| 2009 | 4 | 0 |
| 2010 | 2 | 2 |
| 2011 | 0 | 3 |
| 2012 | 0 | 2 |
| 2013 | 1 | 4 |
| 2014 | 4 | 3 |
| 2015 | 1 | 4 |
| 2016 | 8 | 4 |
| 2017 | 1 | 3 |
| 2018 | 2 | 5 |
| 2019 | 0 | 5 |
| 2020 | 4 | 9 |
| 2021 | 9 | 16 |
| 2022 | 8 | 7 |
| 2023 | 8 | 11 |
| 2024 | 2 | 3 |
| 2025 | 5 | 6 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Device for removing virus particles in an air flow1 May 2025US 2025/0135060 A1Universita' Degli Studi Di Pavia
Most cited
By later US patents
- Air purification system and method100US 7,077,892 B22006
- Air cleaning apparatus and method for cleaning air47US 6,843,835 B2The Procter & Gamble Company · 2005
- Air purification system and method using an ultrasonic wave39US 9,403,114 B2Empire Technology Development LLC · 2016
- Indoor air quality controlled foggers36US 6,076,739 AEnviro-Energy Products, Inc. · 2000
- Air cleaning apparatus and method for cleaning air35US 7,147,692 B2The Procter & Gamble Company · 2006