B01D 39/00
Filtering material for liquid or gaseous fluids
B01D39/00 (Filtering material for liquid or gaseous fluids) appears on 5,566 US grants and 6,167 published applications in this corpus.
Search patents in B01D- Granted patents
- 5,566
- Published applications
- 6,167
- Assignees
- 2,877
- Inventors
- 12,844
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 36 | 0 |
| 1977 | 40 | 0 |
| 1978 | 55 | 0 |
| 1979 | 40 | 0 |
| 1980 | 48 | 0 |
| 1981 | 59 | 0 |
| 1982 | 33 | 0 |
| 1983 | 36 | 0 |
| 1984 | 41 | 0 |
| 1985 | 47 | 0 |
| 1986 | 54 | 0 |
| 1987 | 56 | 0 |
| 1988 | 58 | 0 |
| 1989 | 72 | 0 |
| 1990 | 70 | 0 |
| 1991 | 60 | 0 |
| 1992 | 92 | 0 |
| 1993 | 119 | 0 |
| 1994 | 84 | 0 |
| 1995 | 112 | 0 |
| 1996 | 75 | 0 |
| 1997 | 125 | 0 |
| 1998 | 150 | 0 |
| 1999 | 148 | 0 |
| 2000 | 113 | 0 |
| 2001 | 110 | 43 |
| 2002 | 109 | 140 |
| 2003 | 108 | 201 |
| 2004 | 121 | 214 |
| 2005 | 112 | 194 |
| 2006 | 112 | 188 |
| 2007 | 80 | 177 |
| 2008 | 85 | 182 |
| 2009 | 95 | 171 |
| 2010 | 87 | 201 |
| 2011 | 140 | 200 |
| 2012 | 122 | 171 |
| 2013 | 117 | 187 |
| 2014 | 118 | 211 |
| 2015 | 124 | 220 |
| 2016 | 139 | 243 |
| 2017 | 126 | 239 |
| 2018 | 134 | 277 |
| 2019 | 205 | 335 |
| 2020 | 232 | 328 |
| 2021 | 219 | 422 |
| 2022 | 203 | 444 |
| 2023 | 192 | 397 |
| 2024 | 244 | 323 |
| 2025 | 239 | 268 |
| 2026 | 170 | 191 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Control center box and flexible bathtub6 Oct 2026US 12,751,582 B2Jiaxing Virpol Sanitary Ware co., LTD.
- 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
- Food waste management system6 Oct 2026US 12,753,004 B2SharkNinja Operating LLC
- Systems and methods for stormwater management6 Oct 2026US 12,753,093 B2Advanced Drainage Systems, Inc.
- Substrate treatments29 Sep 2026US 12,746,490 B2Donaldson Company, Inc.
- Multifunctional filter materials8 Oct 2026US 2026/0305741 A1Khalifa University of Science and Technology
- Filtering device and reaction vessel and method for manufacturing aqueous slurry using the same8 Oct 2026US 2026/0306972 A1Umicore Battery Materials Finland Oy
- Method of filtration of particulated systems with injection of nanobubbles, and, use8 Oct 2026US 2026/0306978 A1Universidade Federal Do Rio Grande Do Sul—Ufrgs
- Filter material, method for producing the filter material, and use of melt-blown polypropylene fibers8 Oct 2026US 2026/0306979 A1Carl Freudenberg KG
- Filter system for the removal of volatile organosulfur compounds (voscs) from indoor air8 Oct 2026US 2026/0306980 A1Air Tech Group, SLU
Most cited
By later US patents
- Melt-blown fibrous web1,019US 5,582,907 APall Corporation · 1996
- Blood filter and method of filtration941US 5,190,657 ALydall, Inc. · 1993
- Web of blended microfibers and crimped bulking fibers445US 4,118,531 AMinnesota Mining and Manufacturing Company · 1978
- Melt-blown fibrous electrets387US 4,215,682 AMinnesota Mining and Manufacturing Company · 1980
- Air filtration arrangements having fluted media constructions and methods381US 6,673,136 B2Donaldson Company, Inc. · 2004