F24F 8/158
Using active carbon
Official title: using active carbon
F24F8/158 (Using active carbon) appears on 211 US grants and 247 published applications in this corpus.
Search patents in F24F- Granted patents
- 211
- Published applications
- 247
- Assignees
- 153
- Inventors
- 509
- Latest grant
- 21 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 3 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 3 | 0 |
| 1989 | 4 | 0 |
| 1990 | 4 | 0 |
| 1991 | 1 | 0 |
| 1992 | 4 | 0 |
| 1993 | 0 | 0 |
| 1994 | 3 | 0 |
| 1995 | 5 | 0 |
| 1996 | 6 | 0 |
| 1997 | 4 | 0 |
| 1998 | 8 | 0 |
| 1999 | 7 | 0 |
| 2000 | 3 | 0 |
| 2001 | 6 | 1 |
| 2002 | 6 | 4 |
| 2003 | 3 | 9 |
| 2004 | 6 | 14 |
| 2005 | 9 | 10 |
| 2006 | 5 | 15 |
| 2007 | 5 | 4 |
| 2008 | 6 | 3 |
| 2009 | 5 | 6 |
| 2010 | 3 | 4 |
| 2011 | 2 | 6 |
| 2012 | 0 | 4 |
| 2013 | 3 | 4 |
| 2014 | 6 | 8 |
| 2015 | 1 | 7 |
| 2016 | 6 | 9 |
| 2017 | 10 | 14 |
| 2018 | 3 | 10 |
| 2019 | 1 | 12 |
| 2020 | 8 | 13 |
| 2021 | 9 | 15 |
| 2022 | 11 | 21 |
| 2023 | 13 | 20 |
| 2024 | 11 | 14 |
| 2025 | 10 | 8 |
| 2026 | 5 | 12 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- System for detecting, positioning, and cleaning indoor air pollution21 Apr 2026US 12,607,378 B2Microjet Technology Co., Ltd.
- System for detecting and cleaning air pollution in indoor space with heating, ventilation and air conditioning7 Apr 2026US 12,595,928 B2Microjet Technology Co., Ltd.
- Fresh air ventilation device for air pollution prevention17 Mar 2026US 12,578,108 B2Microjet Technology Co., Ltd.
- Methods and systems for air purification17 Feb 2026US 12,553,627 B2Wowbreeze, LLC
- Surgical smoke treatment system for polar and nonpolar gases17 Feb 2026US 12,553,628 B2Aerobiotix USA LLC
- Portable smoke purifier20 Aug 2026US 2026/0243448 A1Huizhou Quanxin Times Technology Co., Ltd.
- Smart air purifier and a method thereof16 Jul 2026US 2026/0199815 A1HCL Technologies Limited
- Intelligent networked fresh air purifier16 Jul 2026US 2026/0202080 A1Microjet Technology Co., Ltd.
- Intelligent networked energy recovery ventilator16 Jul 2026US 2026/0202081 A1Microjet Technology Co., Ltd.
- Intelligent networked exhaust fan4 Jun 2026US 2026/0153259 A1Microjet Technology Co., Ltd.
Most cited
By later US patents
- Home cleaning robot729US 6,459,955 B1The Procter & Gamble Company · 2002
- Medical/surgical waste collection unit including waste containers of different storage volumes with inter-container transfer valve and independently controlled vacuum levels332US 7,621,898 B2Stryker Corporation · 2009
- Medical/surgical waste collection and disposal system including a rover and a docker, the docker having features facilitating the alignment of the docker with the rover285US 8,740,866 B2Stryker Corporation · 2014
- Medical/surgical waste collection portable rover capable of zero setting a float used to measure the volume of liquid in a waste container259US 10,343,102 B2Stryker Corporation · 2019
- Air purification system185US 5,997,619 ANQ Environmental, Inc. · 1999