B01D 2101/02
Carbon filters
B01D2101/02 (Carbon filters) appears on 48 US grants and 62 published applications in this corpus.
Search patents in B01D- Granted patents
- 48
- Published applications
- 62
- Assignees
- 47
- Inventors
- 107
- Latest grant
- 17 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 1 |
| 2014 | 1 | 2 |
| 2015 | 0 | 0 |
| 2016 | 2 | 1 |
| 2017 | 1 | 5 |
| 2018 | 0 | 5 |
| 2019 | 4 | 6 |
| 2020 | 6 | 12 |
| 2021 | 6 | 7 |
| 2022 | 4 | 7 |
| 2023 | 2 | 4 |
| 2024 | 5 | 5 |
| 2025 | 8 | 3 |
| 2026 | 2 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Systems and methods for production of potable water by recycling processed wastewater streams17 Feb 2026US 12,552,686 B1Mulberry River Environmental LLC
- Filtration device and water filtration pitcher comprising the same13 Jan 2026US 12,521,650 B2King's Flair Innovative Marketing Limited
- Devices and methods for moving, removing and/or installing one or more components of a treatment unit9 Dec 2025US 12,491,454 B2Roberts Marketing DE, Inc.
- Sorbent indoor air purifier30 Sep 2025US 12,427,456 B2
- Method for manufacturing filter plates wastewater filter assemblies12 Aug 2025US 12,383,849 B2Ovivo Inc.
- Systems and Methods for Production of Potable Water By Recycling Processed Wastewater Streams25 Jun 2026US 2026/0176164 A1Mulberry River Technologies, LLC
- Filter cartridge for aquarium; and methods30 Apr 2026US 2026/0115632 A1
- Devices and methods for moving, removing and/or installing one or more components of a treatment unit5 Mar 2026US 2026/0061345 A1Roberts Marketing DE, Inc.
- Sorbent indoor air purifier25 Dec 2025US 2025/0387737 A1
- Water filtration apparatus and process27 Mar 2025US 2025/0099879 A1
Most cited
By later US patents
- Simplified method and apparatus for purification82US 4,948,499 APurewater Science International, Inc. · 1990
- Simplified method and apparatus for purification41US 4,828,692 APurewater Sciences International, Inc. · 1989
- Screening device20US 3,939,065 A1976
- Method of producing a filter pad15US 4,647,415 A1987
- Filtered drinking straw5US 10,307,005 B12019