B01D 2239/0283
Comprising filter materials made from waste or recycled materials
Official title: comprising filter materials made from waste or recycled materials
B01D2239/0283 (Comprising filter materials made from waste or recycled materials) appears on 23 US grants and 44 published applications in this corpus.
Search patents in B01D- Granted patents
- 23
- Published applications
- 44
- Assignees
- 25
- Inventors
- 71
- Latest grant
- 10 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 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 | 1 |
| 2011 | 0 | 3 |
| 2012 | 0 | 0 |
| 2013 | 2 | 1 |
| 2014 | 1 | 1 |
| 2015 | 0 | 0 |
| 2016 | 1 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 7 |
| 2020 | 0 | 4 |
| 2021 | 2 | 5 |
| 2022 | 1 | 4 |
| 2023 | 4 | 12 |
| 2024 | 6 | 1 |
| 2025 | 3 | 1 |
| 2026 | 1 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Nonwoven fabrics including recycled polypropylene10 Feb 2026US 12,546,039 B2Magnera Corporation
- Method of making a filter with ground animal bone granules and filtering therewith9 Dec 2025US 12,491,453 B1
- Cellulose based biodegradable absorptive filter and method of making15 Apr 2025US 12,274,964 B1Imam Mohammad Ibn Saud Islamic University
- Tailing pond remediation25 Feb 2025US 12,233,365 B2Heat IP Holdco, LLC
- Method for making an adsorptive air filter24 Dec 2024US 12,172,112 B1Imam Mohammad Ibn Saud Islamic University
- Biochar materials for abatement of pollutants4 Jun 2026US 2026/0151717 A1AbTech Industries, Inc.
- Filter4 Jun 2026US 2026/0151718 A1Guann Ming Technology Co., Ltd.
- Nonwoven fabrics including recycled polypropylene21 May 2026US 2026/0139418 A1Magnera Corporation
- Pleatable filter media12 Feb 2026US 2026/0042048 A1DelStar Technologies, Inc.
- Non-woven structure with fibers catalyzed by a metallocene catalyst5 Jun 2025US 2025/0179702 A2Beaulieu International Group NV
Most cited
By later US patents
- High efficiency low pressure drop synthetic fiber based air filter made completely from post consumer waste materials49US 8,398,752 B22013
- Bonded carbon or ceramic fiber composite filter vent for radioactive waste26US 4,500,328 A1985
- Vacuum cleaner filter bag made from recycled plastic2US 11,602,252 B2Eurofilters N. V. · 2023
- Tailing pond remediation1US 11,097,212 B2Plasma Tech Holdings, LLC · 2021
- Vacuum cleaner filter bag made from recycled plastic1US 11,504,662 B2Eurofilters N. V. · 2022