F24F 8/175
Using biological materials, plants or microorganisms
Official title: using biological materials, plants or microorganisms
F24F8/175 (Using biological materials, plants or microorganisms) appears on 54 US grants and 71 published applications in this corpus.
Search patents in F24F- Granted patents
- 54
- Published applications
- 71
- Assignees
- 55
- Inventors
- 179
- Latest grant
- 19 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 3 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 3 | 0 |
| 1994 | 3 | 0 |
| 1995 | 3 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 2 |
| 2003 | 1 | 3 |
| 2004 | 1 | 0 |
| 2005 | 1 | 1 |
| 2006 | 0 | 1 |
| 2007 | 1 | 0 |
| 2008 | 0 | 2 |
| 2009 | 0 | 3 |
| 2010 | 0 | 0 |
| 2011 | 4 | 3 |
| 2012 | 0 | 3 |
| 2013 | 1 | 1 |
| 2014 | 2 | 7 |
| 2015 | 3 | 2 |
| 2016 | 1 | 1 |
| 2017 | 2 | 0 |
| 2018 | 0 | 3 |
| 2019 | 1 | 3 |
| 2020 | 2 | 2 |
| 2021 | 3 | 7 |
| 2022 | 1 | 7 |
| 2023 | 2 | 10 |
| 2024 | 3 | 3 |
| 2025 | 6 | 4 |
| 2026 | 1 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- System and method for air filtration and therapeutic relief19 May 2026US 12,631,352 B2
- Multi-functional equipment for direct decarbonization with improved indoor air quality25 Nov 2025US 12,480,672 B2UT-Battelle, LLC
- Air purifier with plant pot11 Nov 2025US 12,467,648 B2Dupray Ventures Inc.
- Air treatment method and system30 Sep 2025US 12,426,554 B2
- Air filtration system26 Aug 2025US 12,397,255 B2Pmk Products, LLC
- Air Filter8 Oct 2026US 2026/0309346 A1Zhongshan Scott Clean&Purification Co., Ltd.
- Air purification device14 May 2026US 2026/0132942 A1Botanical Development S.R.L.
- Air purifier using moss, air purifying system, and operating method thereof1 Jan 2026US 2026/0001035 A1Taiga Global Inc.
- Systems and methods for cyanobacteria indoor air biofiltration to reduce air handling energy consumption26 Jun 2025US 2025/0207079 A1
- Indoor air cleaning system24 Apr 2025US 2025/0129962 A1Microjet Technology Co., Ltd.
Most cited
By later US patents
- Room air purifier75US 5,277,877 ASpace Biospheres Ventures · 1994
- Micro-irrigation device, system, and method for plant-based cleaning of indoor air and filter bed bioregeneration65US 8,454,729 B22013
- Combined lamp and indoor air purification apparatus63US 5,217,696 A1993
- Air-cleaning ecosystem apparatus51US 6,006,471 A1999
- Room air cleansing using hydroponic plants51US 6,727,091 B2University of Guelph · 2004