B01D 46/546
Using nano- or microfibres
Official title: {using nano- or microfibres}
B01D46/546 (Using nano- or microfibres) appears on 109 US grants and 146 published applications in this corpus.
Search patents in B01D- Granted patents
- 109
- Published applications
- 146
- Assignees
- 74
- Inventors
- 303
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 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 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 4 | 0 |
| 1998 | 5 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 1 |
| 2002 | 1 | 3 |
| 2003 | 2 | 3 |
| 2004 | 4 | 9 |
| 2005 | 6 | 3 |
| 2006 | 6 | 5 |
| 2007 | 3 | 7 |
| 2008 | 3 | 5 |
| 2009 | 0 | 5 |
| 2010 | 0 | 11 |
| 2011 | 4 | 4 |
| 2012 | 7 | 6 |
| 2013 | 6 | 4 |
| 2014 | 5 | 7 |
| 2015 | 3 | 6 |
| 2016 | 4 | 6 |
| 2017 | 1 | 8 |
| 2018 | 5 | 4 |
| 2019 | 6 | 9 |
| 2020 | 6 | 6 |
| 2021 | 1 | 8 |
| 2022 | 4 | 7 |
| 2023 | 6 | 6 |
| 2024 | 3 | 4 |
| 2025 | 1 | 6 |
| 2026 | 2 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Polyethersulfone fiber webs22 Sep 2026US 12,741,243 B2Hollingsworth & Vose Company
- Biodegradable filters11 Aug 2026US 12,702,942 B2NxtNano, LLC
- Automatic sample collector and extractor29 Apr 2025US 12,285,711 B1
- Electrospinning method for fabricating nanofiber air filter with minimized pressure drop31 Dec 2024US 12,180,613 B2
- Electrostatic adsorption mask5 Mar 2024US 11,918,976 B2Beijing FUNATE Innovation Technology Co., Ltd.
- Micro-fibre filter cartridge and filter unit23 Jul 2026US 2026/0208078 A1
- Indoor field intelligent cleaning system25 Jun 2026US 2026/0177263 A1Microjet Technology Co., Ltd.
- Air filter for high-efficiency pm2.5 capture14 May 2026US 2026/0131270 A1The Board of Trustees of the Leland Stanford Junior University
- Decontaminating materials and methods of making and using same11 Sep 2025US 2025/0281876 A1Teledyne FLIR Defense, Inc.
- Filter and method for manufacturing same21 Aug 2025US 2025/0262581 A1LG Electronics Inc.
Most cited
By later US patents
- Air filtration arrangements having fluted media constructions and methods381US 6,673,136 B2Donaldson Company, Inc. · 2004
- Filter material construction and method335US 5,672,399 ADonaldson Company, Inc. · 1997
- Smoke plume evacuation filtration system295US 6,585,791 B12003
- Polymer, polymer microfiber, polymer nanofiber and applications including filter structures252US 6,743,273 B2Donaldson Company, Inc. · 2004
- Cleanable high efficiency filter media structure and applications for use231US 7,008,465 B2Donaldson Company, Inc. · 2006