B01D 2239/0442
Antimicrobial, antibacterial, antifungal additives
B01D2239/0442 (Antimicrobial, antibacterial, antifungal additives) appears on 276 US grants and 588 published applications in this corpus.
Search patents in B01D- Granted patents
- 276
- Published applications
- 588
- Assignees
- 348
- Inventors
- 1,261
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 3 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 5 | 0 |
| 2001 | 3 | 1 |
| 2002 | 0 | 5 |
| 2003 | 2 | 2 |
| 2004 | 1 | 10 |
| 2005 | 3 | 8 |
| 2006 | 3 | 11 |
| 2007 | 6 | 12 |
| 2008 | 1 | 14 |
| 2009 | 7 | 12 |
| 2010 | 12 | 16 |
| 2011 | 7 | 17 |
| 2012 | 10 | 9 |
| 2013 | 7 | 16 |
| 2014 | 3 | 9 |
| 2015 | 2 | 11 |
| 2016 | 9 | 10 |
| 2017 | 8 | 18 |
| 2018 | 3 | 15 |
| 2019 | 9 | 21 |
| 2020 | 12 | 21 |
| 2021 | 18 | 78 |
| 2022 | 15 | 98 |
| 2023 | 22 | 81 |
| 2024 | 28 | 45 |
| 2025 | 38 | 29 |
| 2026 | 25 | 19 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Personal protective anti-viral face mask15 Sep 2026US 12,734,378 B2lowa State University Research Foundation, Inc.
- Preparation method of bismuth ion filter membrane and application thereof15 Sep 2026US 12,734,470 B2Work Together Marketing Consultant Limited
- Anti-microbial filter18 Aug 2026US 12,708,690 B2Acell Industries Limited
- Biodegradable filters11 Aug 2026US 12,702,942 B2NxtNano, LLC
- Multifunctional filter materials30 Jun 2026US 12,667,143 B2Khalifa University of Science and Technology
- Multifunctional filter materials8 Oct 2026US 2026/0305741 A1Khalifa University of Science and Technology
- Water-Holding Fabric, Filter, Humidifier and Method for Manufacturing Water-Holding Fabric23 Jul 2026US 2026/0210005 A1Shenzhen Chenbei Technology Co., Ltd.
- Filter containing pharmaceutical salt for a face mask, breathable face mask containing the filter, and method of manufacturing18 Jun 2026US 2026/0166349 A1
- Air filter with pathogen monitoring and inactivation21 May 2026US 2026/0137077 A1Industrial Polymers and Chemicals, Inc.
- Nonwoven fabrics including recycled polypropylene21 May 2026US 2026/0139418 A1Magnera Corporation
Most cited
By later US patents
- Antimicrobial filter cartridge129US 5,868,933 A1999
- Web comprising fine fiber and reactive, adsorptive or absorptive particulate116US 7,655,070 B1Donaldson Company, Inc. · 2010
- Contact-killing antimicrobial devices104US 5,817,325 ABioPolymerix, Inc. · 1998
- Exhaust gas cleaning catalyst and process for production thereof81US 4,749,671 ANippon Shokubai Kagaku Kogyo Co., Ltd. · 1988
- Electrostatic air filter74US 7,311,752 B2Argonide Corporation · 2007