F24F 8/99
For treating air sourced from urban areas
Official title: for treating air sourced from urban areas, e.g. from streets
F24F8/99 (For treating air sourced from urban areas) appears on 38 US grants and 54 published applications in this corpus.
Search patents in F24F- Granted patents
- 38
- Published applications
- 54
- Assignees
- 35
- Inventors
- 122
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 1 | 1 |
| 2005 | 0 | 0 |
| 2006 | 2 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 2 |
| 2011 | 0 | 0 |
| 2012 | 2 | 2 |
| 2013 | 0 | 0 |
| 2014 | 1 | 0 |
| 2015 | 0 | 0 |
| 2016 | 1 | 1 |
| 2017 | 0 | 9 |
| 2018 | 0 | 2 |
| 2019 | 1 | 6 |
| 2020 | 6 | 8 |
| 2021 | 5 | 6 |
| 2022 | 3 | 5 |
| 2023 | 3 | 5 |
| 2024 | 5 | 2 |
| 2025 | 0 | 1 |
| 2026 | 2 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Vehicle, fleet, and method for treating environment air15 Sep 2026US 12,734,886 B2MANN+HUMMEL Ventures Pte. Ltd.
- Apparatus, system, and method for preventing spread of air-borne contaminants27 Jan 2026US 12,535,235 B2AirTulip Inc.
- Outdoor air cleaning system6 Aug 2024US 12,055,320 B2Samsung Electronics Co., Ltd.
- Air purification system and internet of things artificial intelligence control apparatus23 Jul 2024US 12,042,754 B2
- Portable air-filtering device14 May 2024US 11,981,366 B2bubl. AB.
- Apparatus, system, and method for preventing spread of air-borne contaminants4 Jun 2026US 2026/0153252 A1AirTulip Inc.
- Central emission suction device from one or more emission sites22 Jan 2026US 2026/0022848 A1
- Carbon dioxide recovery system18 Dec 2025US 2025/0381512 A1Mitsubishi Electric Corporation
- Portable air-filtering device1 Aug 2024US 2024/0253686 A1bubl. AB.
- Vehicle, fleet, and method for treating environment air25 Jul 2024US 2024/0246017 A1MANN+HUMMEL Ventures Pte. Ltd.
Most cited
By later US patents
- Wind driven, high altitude power apparatus65US 4,084,102 A1978
- Wind driven, high altitude power apparatus50US 4,165,468 A1979
- System and method for assessing and reducing air pollution by regulating airflow ventilation32US 8,190,367 B2G.R.G. Patents Ltd. · 2012
- Air filtering chimney to clean pollution from a city and generate electric power25US 7,026,723 B2Handels und Finanz AG · 2006
- Air purification device for automobile with oxygen-supplying function23US 6,712,886 B22004