F24F 3/16
By purification
Official title: by purification, e.g. by filtering; by sterilisation; by ozonisation
F24F3/16 (By purification) appears on 769 US grants and 842 published applications in this corpus.
Search patents in F24F- Granted patents
- 769
- Published applications
- 842
- Assignees
- 525
- Inventors
- 1,920
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 4 | 0 |
| 1985 | 4 | 0 |
| 1986 | 3 | 0 |
| 1987 | 8 | 0 |
| 1988 | 6 | 0 |
| 1989 | 14 | 0 |
| 1990 | 10 | 0 |
| 1991 | 13 | 0 |
| 1992 | 10 | 0 |
| 1993 | 13 | 0 |
| 1994 | 16 | 0 |
| 1995 | 11 | 0 |
| 1996 | 10 | 0 |
| 1997 | 20 | 0 |
| 1998 | 19 | 0 |
| 1999 | 24 | 0 |
| 2000 | 22 | 0 |
| 2001 | 20 | 8 |
| 2002 | 13 | 16 |
| 2003 | 22 | 21 |
| 2004 | 14 | 26 |
| 2005 | 22 | 18 |
| 2006 | 15 | 21 |
| 2007 | 5 | 13 |
| 2008 | 10 | 19 |
| 2009 | 3 | 13 |
| 2010 | 8 | 10 |
| 2011 | 3 | 11 |
| 2012 | 6 | 20 |
| 2013 | 7 | 16 |
| 2014 | 8 | 24 |
| 2015 | 15 | 26 |
| 2016 | 22 | 29 |
| 2017 | 15 | 27 |
| 2018 | 14 | 33 |
| 2019 | 37 | 35 |
| 2020 | 24 | 35 |
| 2021 | 28 | 72 |
| 2022 | 46 | 97 |
| 2023 | 47 | 96 |
| 2024 | 45 | 73 |
| 2025 | 55 | 43 |
| 2026 | 42 | 40 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Filter unit29 Sep 2026US 12,746,493 B2Samsung Biologics Co., Ltd.
- Work space forming equipment, work method, and management space facility22 Sep 2026US 12,742,558 B2Jgc Japan Corporation
- System and methods for controlling laboratory fume hood minimum airflow8 Sep 2026US 12,728,449 B2Measured Air Performance, LLC
- Indoor air cleaning system8 Sep 2026US 12,729,868 B2Microjet Technology Co., Ltd.
- Systems and methods for managing air quality in a surgical environment25 Aug 2026US 12,718,934 B2Stryker Corporation
- Airframe system and method of controlling airflow8 Oct 2026US 2026/0306210 A1SLD Technology, Inc.
- High performance ventilated workspaces24 Sep 2026US 2026/0287185 A13Flow, Inc.
- Method of storing photoresist coated substrates and semiconductor substrate container arrangement17 Sep 2026US 2026/0277106 A1Taiwan Semiconductor Manufacturing Company.Ltd
- Device and method for carrying out decontamination measures, method for preparing decontamination measures and method for monitoring decontamination measures10 Sep 2026US 2026/0266486 A1
- Ultraviolet air purifying system and method20 Aug 2026US 2026/0243454 A1Viggiani and Associates dba Green Earth Systems
Most cited
By later US patents
- Environmental sensor device with alarms333US 9,280,884 B1Oberon, Inc. · 2016
- Clean room air filtering135US 5,626,820 A1997
- Apparatus and method for neutralizing static electric charges in sensitive manufacturing areas119US 4,477,263 A1984
- Rollably positioned, adjustably directable clean air delivery supply assembly, for use in weather protected environments to provide localized clean air, where activities require clean air quality per strict specifications116US 6,099,607 A2000
- Modular clean room110US 4,409,889 A1983