F24F 1/0328
With means for purifying supplied air
Official title: with means for purifying supplied air (perfuming or deodorising means F24F1/0355)
F24F1/0328 (With means for purifying supplied air) appears on 138 US grants and 161 published applications in this corpus.
Search patents in F24F- Granted patents
- 138
- Published applications
- 161
- Assignees
- 86
- Inventors
- 426
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 3 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 2 | 0 |
| 1998 | 3 | 0 |
| 1999 | 1 | 0 |
| 2000 | 3 | 0 |
| 2001 | 1 | 1 |
| 2002 | 2 | 0 |
| 2003 | 1 | 1 |
| 2004 | 1 | 4 |
| 2005 | 2 | 2 |
| 2006 | 0 | 1 |
| 2007 | 0 | 4 |
| 2008 | 4 | 2 |
| 2009 | 2 | 0 |
| 2010 | 0 | 2 |
| 2011 | 0 | 3 |
| 2012 | 0 | 2 |
| 2013 | 1 | 3 |
| 2014 | 1 | 1 |
| 2015 | 3 | 7 |
| 2016 | 3 | 3 |
| 2017 | 2 | 11 |
| 2018 | 2 | 6 |
| 2019 | 6 | 4 |
| 2020 | 7 | 17 |
| 2021 | 4 | 26 |
| 2022 | 13 | 25 |
| 2023 | 21 | 10 |
| 2024 | 13 | 12 |
| 2025 | 16 | 6 |
| 2026 | 4 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Ventilation apparatus28 Jul 2026US 12,693,030 B2LG Electronics Inc.
- Air cleaner12 May 2026US 12,623,175 B2LG Electronics Inc.
- Fan assembly17 Feb 2026US 12,553,642 B2Dyson Technology Limited
- Fan assembly for an air conditioner appliance10 Feb 2026US 12,546,488 B2Haier US Appliance Solutions, Inc.
- Compact, leakless, and power-efficient packaged terminal air conditioner (PTAC) with an evaporating element for the meltwater9 Dec 2025US 12,492,828 B2
- Air purifier27 Aug 2026US 2026/0249223 A1Shenzhen Antop Technology Limited
- Air cleaner20 Aug 2026US 2026/0241320 A1LG Electronics Inc.
- Window air conditioner20 Aug 2026US 2026/0243446 A1Gd Midea Air-Conditioning Equipment Co., Ltd.
- Portable smoke purifier20 Aug 2026US 2026/0243448 A1Huizhou Quanxin Times Technology Co., Ltd.
- Improvements in or relating to meeting rooms4 Jun 2026US 2026/0153248 A1Radii Planet Group Limited
Most cited
By later US patents
- Apparatus suited for ventilating rooms contaminated with infectious disease organisms114US 5,761,908 AAir Quality Engineering · 1998
- Desk mounted personal environment system60US 5,499,504 AScots Pine Enterprises Ltd., c/o Perly-Robertson Panet, Hill & McDougall · 1996
- Air treatment apparatus utilizing interchangeable cartridges59US 5,259,062 APelko Electric Corporation · 1993
- Open loop cooling apparatus57US 5,386,823 AThe United States of America as represented by the Secretary of the Air Force · 1995
- Coupling type clean space apparatus55US 5,326,316 AMatsushita Electric Industrial Co., Ltd. · 1994