B01D 39/14
Filtering material for liquid or gaseous fluids: other self-supporting filtering material
Official title: Other self-supporting filtering material {; Other filtering material (non-woven fabrics in general D04H3/00)}
B01D39/14 (Filtering material for liquid or gaseous fluids: other self-supporting filtering material) appears on 4,660 US grants and 5,210 published applications in this corpus.
Search patents in B01D- Granted patents
- 4,660
- Published applications
- 5,210
- Assignees
- 2,368
- Inventors
- 10,848
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 26 | 0 |
| 1977 | 31 | 0 |
| 1978 | 49 | 0 |
| 1979 | 36 | 0 |
| 1980 | 40 | 0 |
| 1981 | 45 | 0 |
| 1982 | 29 | 0 |
| 1983 | 27 | 0 |
| 1984 | 29 | 0 |
| 1985 | 33 | 0 |
| 1986 | 46 | 0 |
| 1987 | 45 | 0 |
| 1988 | 42 | 0 |
| 1989 | 60 | 0 |
| 1990 | 60 | 0 |
| 1991 | 50 | 0 |
| 1992 | 79 | 0 |
| 1993 | 96 | 0 |
| 1994 | 64 | 0 |
| 1995 | 92 | 0 |
| 1996 | 60 | 0 |
| 1997 | 105 | 0 |
| 1998 | 136 | 0 |
| 1999 | 129 | 0 |
| 2000 | 98 | 0 |
| 2001 | 102 | 40 |
| 2002 | 99 | 116 |
| 2003 | 96 | 178 |
| 2004 | 106 | 176 |
| 2005 | 98 | 182 |
| 2006 | 101 | 172 |
| 2007 | 70 | 158 |
| 2008 | 73 | 159 |
| 2009 | 85 | 141 |
| 2010 | 74 | 186 |
| 2011 | 127 | 172 |
| 2012 | 112 | 144 |
| 2013 | 102 | 164 |
| 2014 | 102 | 169 |
| 2015 | 101 | 179 |
| 2016 | 111 | 197 |
| 2017 | 99 | 198 |
| 2018 | 107 | 210 |
| 2019 | 171 | 272 |
| 2020 | 182 | 255 |
| 2021 | 169 | 355 |
| 2022 | 158 | 364 |
| 2023 | 155 | 356 |
| 2024 | 205 | 276 |
| 2025 | 196 | 232 |
| 2026 | 152 | 159 |
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
- Substrate treatments29 Sep 2026US 12,746,490 B2Donaldson Company, Inc.
- Granulated hierarchical material structure29 Sep 2026US 12,746,527 B2Metalmark Innovations, PBC
- 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