B01D 2239/125
Size distribution
B01D2239/125 (Size distribution) appears on 64 US grants and 92 published applications in this corpus.
Search patents in B01D- Granted patents
- 64
- Published applications
- 92
- Assignees
- 67
- Inventors
- 252
- Latest grant
- 21 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 3 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 1 |
| 2002 | 3 | 3 |
| 2003 | 2 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 3 |
| 2006 | 1 | 1 |
| 2007 | 0 | 1 |
| 2008 | 1 | 2 |
| 2009 | 0 | 2 |
| 2010 | 1 | 3 |
| 2011 | 4 | 6 |
| 2012 | 3 | 4 |
| 2013 | 3 | 4 |
| 2014 | 5 | 4 |
| 2015 | 3 | 2 |
| 2016 | 1 | 3 |
| 2017 | 3 | 2 |
| 2018 | 1 | 4 |
| 2019 | 3 | 2 |
| 2020 | 2 | 6 |
| 2021 | 4 | 7 |
| 2022 | 4 | 9 |
| 2023 | 1 | 12 |
| 2024 | 4 | 5 |
| 2025 | 2 | 3 |
| 2026 | 3 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Porous structure such as for filters, and making the same21 Jul 2026US 12,685,951 B2Corning Incorporated
- Honeycomb filter14 Apr 2026US 12,599,862 B2NGK Insulators, Ltd.
- Filter sheet media and method for manufacturing a filter sheet media31 Mar 2026US 12,589,342 B2Ahlstrom Oyj
- Composite filter media with multiple fiber structures including nanofibers6 May 2025US 12,290,772 B2Cummins Filtration IP, Inc.
- Filtration media and method of manufacturing filtration media using nanofilm22 Apr 2025US 12,280,324 B2Research Products Corporation
- Filter Sheet Media and Method for Manufacturing a Filter Sheet Media9 Jul 2026US 2026/0192222 A1Ahlstrom Oyj
- Particulate Filter26 Mar 2026US 2026/0084084 A1Cataler Corporation
- Light weight substrate with glass bubble skeleton having mixed porosity for carbon capture and method of making18 Dec 2025US 2025/0382218 A1Corning Incorporated
- Volumetric media and uses thereof28 Aug 2025US 2025/0269307 A1Donaldson Company, Inc.
- Porus block article2 Jan 2025US 2025/0001397 A1Arkema Inc.
Most cited
By later US patents
- Blood separation device comprising a filter and a capillary flow pathway exiting the filter254US 4,753,776 ABiotrack, Inc. · 1988
- Post-treatment of nonwoven webs153US 5,244,482 AThe University of Tennessee Research Corporation · 1993
- Extruded solid composite articles and compositions for producing same74US 5,331,037 AKoslow Technologies Corporation · 1994
- Disposable protective mask71US 4,643,182 A1987
- Meltblown fabric63US 5,273,565 AExxon Chemical Patents Inc. · 1993