B01D 2239/0492
On fibres
Official title: on fibres
B01D2239/0492 (On fibres) appears on 195 US grants and 250 published applications in this corpus.
Search patents in B01D- Granted patents
- 195
- Published applications
- 250
- Assignees
- 189
- Inventors
- 615
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 3 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 4 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 3 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 3 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 8 | 0 |
| 1994 | 3 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 6 | 0 |
| 1998 | 9 | 0 |
| 1999 | 10 | 0 |
| 2000 | 3 | 0 |
| 2001 | 2 | 1 |
| 2002 | 5 | 4 |
| 2003 | 3 | 2 |
| 2004 | 2 | 7 |
| 2005 | 2 | 4 |
| 2006 | 2 | 10 |
| 2007 | 4 | 9 |
| 2008 | 6 | 5 |
| 2009 | 2 | 5 |
| 2010 | 3 | 7 |
| 2011 | 5 | 5 |
| 2012 | 4 | 5 |
| 2013 | 4 | 2 |
| 2014 | 4 | 4 |
| 2015 | 1 | 4 |
| 2016 | 0 | 2 |
| 2017 | 3 | 11 |
| 2018 | 2 | 9 |
| 2019 | 8 | 10 |
| 2020 | 10 | 7 |
| 2021 | 4 | 17 |
| 2022 | 6 | 34 |
| 2023 | 10 | 38 |
| 2024 | 11 | 16 |
| 2025 | 14 | 15 |
| 2026 | 11 | 17 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method for adjusting grouting parameters in preparation of ceramic composite fiber-based catalytic filter tube, and method and device for preparing ceramic composite fiber-based catalytic filter tube6 Oct 2026US 12,752,223 B2Zhejiang Zhiyuan Environmental Technology Co., Ltd
- System for continuous oil/water separation using superhydrophilic oil/water separation filter14 Jul 2026US 12,678,713 B2Postech Research and Business Development Foundation
- Antibacterial filter, method for manufacturing same, and air purifier comprising same30 Jun 2026US 12,667,801 B2Coway Co., Ltd.
- Filtration media and filters19 May 2026US 12,629,622 B2DelStar Technologies, Inc.
- Polymeric fabric19 May 2026US 12,629,920 B2Sefar AG
- Surface-catalytically finished polymer fibres and/or polymeric sheets, method for surface-catalytically finishing same, and use thereof for producing an air purification filter3 Sep 2026US 2026/0257204 A1Hochschule Niederrhein
- Filtration media and filters27 Aug 2026US 2026/0249218 A1DelStar Technologies, Inc.
- Coated nonwoven article derived from porous polymeric fibers and methods thereof13 Aug 2026US 2026/0234865 A13M Innovative Properties Company
- Graphene Functionalized HEPA Filter23 Jul 2026US 2026/0208085 A1University of Connecticut
- Fluorocarbon-free filtration media9 Jul 2026US 2026/0192223 A1Unifrax I LLC
Most cited
By later US patents
- Polymer, polymer microfiber, polymer nanofiber and applications including filter structures252US 6,743,273 B2Donaldson Company, Inc. · 2004
- Post-treatment of nonwoven webs153US 5,244,482 AThe University of Tennessee Research Corporation · 1993
- Process if making fine fiber material131US 6,955,775 B2Donaldson Company, Inc. · 2005
- Polymer, polymer microfiber, polymer nanofiber and applications including filter structures120US 6,924,028 B2Donaldson Company, Inc. · 2005
- Filter sheet material109US 4,510,193 A1985