B01D 2239/10
Filtering material manufacturing
B01D2239/10 (Filtering material manufacturing) appears on 699 US grants and 1,032 published applications in this corpus.
Search patents in B01D- Granted patents
- 699
- Published applications
- 1,032
- Assignees
- 642
- Inventors
- 2,602
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 3 | 0 |
| 1978 | 8 | 0 |
| 1979 | 4 | 0 |
| 1980 | 7 | 0 |
| 1981 | 7 | 0 |
| 1982 | 1 | 0 |
| 1983 | 3 | 0 |
| 1984 | 3 | 0 |
| 1985 | 2 | 0 |
| 1986 | 7 | 0 |
| 1987 | 5 | 0 |
| 1988 | 9 | 0 |
| 1989 | 8 | 0 |
| 1990 | 7 | 0 |
| 1991 | 7 | 0 |
| 1992 | 6 | 0 |
| 1993 | 7 | 0 |
| 1994 | 14 | 0 |
| 1995 | 8 | 0 |
| 1996 | 7 | 0 |
| 1997 | 14 | 0 |
| 1998 | 17 | 0 |
| 1999 | 22 | 0 |
| 2000 | 12 | 0 |
| 2001 | 10 | 6 |
| 2002 | 5 | 14 |
| 2003 | 12 | 20 |
| 2004 | 11 | 16 |
| 2005 | 6 | 16 |
| 2006 | 10 | 17 |
| 2007 | 6 | 33 |
| 2008 | 4 | 18 |
| 2009 | 13 | 15 |
| 2010 | 7 | 19 |
| 2011 | 15 | 27 |
| 2012 | 13 | 20 |
| 2013 | 14 | 21 |
| 2014 | 12 | 17 |
| 2015 | 17 | 29 |
| 2016 | 14 | 13 |
| 2017 | 10 | 39 |
| 2018 | 8 | 43 |
| 2019 | 26 | 48 |
| 2020 | 32 | 66 |
| 2021 | 34 | 93 |
| 2022 | 34 | 105 |
| 2023 | 30 | 125 |
| 2024 | 52 | 91 |
| 2025 | 62 | 73 |
| 2026 | 52 | 48 |
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
- Preparation method of bismuth ion filter membrane and application thereof15 Sep 2026US 12,734,470 B2Work Together Marketing Consultant Limited
- Flue gas filtration media8 Sep 2026US 12,728,374 B2Ahlstrom Oyj
- High efficiency synthetic filter media1 Sep 2026US 12,722,107 B2Knowlton Technologies, LLC
- Oil and fuel collector25 Aug 2026US 12,714,951 B2Manvers Engineering Limited
- Method for preparing a composite filter medium and the composite filter medium obtained with this method1 Oct 2026US 2026/0295484 A1Saati S.P.A.
- Depth filter10 Sep 2026US 2026/0263976 A1Jnc Corporation
- Depth filter10 Sep 2026US 2026/0263977 A1Jnc Corporation
- 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
- Highly transparent thin polyvinyl alcohol aerogels and manufacture thereof20 Aug 2026US 2026/0242558 A1Northeastern University
Most cited
By later US patents
- Melt-blown fibrous web1,019US 5,582,907 APall Corporation · 1996
- Melt-blown fibrous electrets387US 4,215,682 AMinnesota Mining and Manufacturing Company · 1980
- Method of charging electret filter media289US 5,496,507 AMinnesota Mining and Manufacturing Company · 1996
- Method for manufacturing an electret filter medium243US 4,588,537 AMinnesota Mining and Manufacturing Company · 1986
- Method of making fibrous electrets241US 4,375,718 ASurgikos, Inc. · 1983