B01D 39/1615
Of natural origin
Official title: {of natural origin}
B01D39/1615 (Of natural origin) appears on 191 US grants and 310 published applications in this corpus.
Search patents in B01D- Granted patents
- 191
- Published applications
- 310
- Assignees
- 172
- Inventors
- 612
- Latest grant
- 2 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 5 | 0 |
| 1998 | 0 | 0 |
| 1999 | 5 | 0 |
| 2000 | 2 | 0 |
| 2001 | 4 | 0 |
| 2002 | 3 | 2 |
| 2003 | 2 | 1 |
| 2004 | 1 | 14 |
| 2005 | 3 | 9 |
| 2006 | 2 | 11 |
| 2007 | 4 | 6 |
| 2008 | 3 | 7 |
| 2009 | 5 | 14 |
| 2010 | 5 | 9 |
| 2011 | 5 | 8 |
| 2012 | 10 | 10 |
| 2013 | 3 | 5 |
| 2014 | 9 | 14 |
| 2015 | 6 | 6 |
| 2016 | 4 | 18 |
| 2017 | 8 | 11 |
| 2018 | 4 | 10 |
| 2019 | 13 | 20 |
| 2020 | 7 | 12 |
| 2021 | 13 | 27 |
| 2022 | 9 | 48 |
| 2023 | 17 | 18 |
| 2024 | 16 | 9 |
| 2025 | 10 | 13 |
| 2026 | 6 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Non-passive anti-viral and nanofilter based respirators2 Jun 2026US 12,643,063 B1University of Louisville Research Foundation, Inc.
- Electret and filter using the same28 Apr 2026US 12,611,650 B2TOYOBO MC Corporation
- Face mask, composites, iron-iron oxide compositions and methods of manufacture and use thereof10 Mar 2026US 12,568,974 B2N&E Innovations Pte. Ltd.
- Biofilter block and use thereof for wastewater treatment10 Mar 2026US 12,570,558 B2Premier Tech Eau Et Environnement LtéE
- Filter medium and composite filter including same3 Feb 2026US 12,539,476 B2Amogreentech Co., Ltd.
- Communicating filter plants27 Aug 2026US 2026/0249226 A1Kappa Filter Systems GmbH
- Filtration medium14 May 2026US 2026/0131269 A1
- A mold for producing an article of manufacture2 Apr 2026US 2026/0091533 A1Criaterra Innovations Ltd.
- Nonwoven filtration media including microfibrillated cellulose fibers12 Mar 2026US 2026/0070010 A1Donaldson Company, Inc.
- Filter media comprising fibrillated fibers and glass fibers26 Feb 2026US 2026/0054204 A1Hollingsworth & Vose Company
Most cited
By later US patents
- Anti-microbial fiber and fibrous products217US 6,946,196 B2Foss Manufacturing Co., Inc. · 2005
- Method and apparatus for the electrostatic charging of a web or film195US 5,401,446 AThe University of Tennessee Research Corporation · 1995
- Tufted fibrous web127US 7,553,532 B2The Procter & Gamble Company · 2009
- Anti-microbial fiber and fibrous products101US 6,723,428 B1Foss Manufacturing Co., Inc. · 2004
- Filter medium and breather filter structure95US 8,057,567 B2Donaldson Company, Inc. · 2011