B01D 2325/021
Pore shapes
B01D2325/021 (Pore shapes) appears on 171 US grants and 256 published applications in this corpus.
Search patents in B01D- Granted patents
- 171
- Published applications
- 256
- Assignees
- 173
- Inventors
- 578
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 3 | 0 |
| 2001 | 1 | 1 |
| 2002 | 0 | 0 |
| 2003 | 2 | 1 |
| 2004 | 0 | 2 |
| 2005 | 0 | 2 |
| 2006 | 1 | 7 |
| 2007 | 2 | 7 |
| 2008 | 2 | 8 |
| 2009 | 2 | 9 |
| 2010 | 9 | 7 |
| 2011 | 4 | 14 |
| 2012 | 9 | 8 |
| 2013 | 8 | 6 |
| 2014 | 6 | 14 |
| 2015 | 5 | 14 |
| 2016 | 6 | 8 |
| 2017 | 14 | 6 |
| 2018 | 5 | 14 |
| 2019 | 3 | 11 |
| 2020 | 13 | 19 |
| 2021 | 11 | 23 |
| 2022 | 9 | 17 |
| 2023 | 12 | 16 |
| 2024 | 15 | 21 |
| 2025 | 11 | 14 |
| 2026 | 10 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Hollow fiber microporous membrane, and gas separation membrane module with same built thereinto6 Oct 2026US 12,752,243 B2Toray Industries, Inc.
- Device and method for separating particles in a liquid, kit containing the device, and applications of the device1 Sep 2026US 12,722,126 B2Cell.Copedia GmbH
- Collecting filter and method for manufacturing transparent conducting film using the same11 Aug 2026US 12,702,956 B2Denso Corporation
- Filtration membrane26 May 2026US 12,636,621 B2The Regents of the University of California
- Membrane sealing layer and spacer ring for viral clearance chromatography device19 May 2026US 12,629,611 B2Life Technologies Corporation
- Biosensor materials6 Aug 2026US 2026/0227395 A1The Regents of the University of California
- Porous ceramic layer, porous ceramic layered body and separation membrane30 Jul 2026US 2026/0216665 A1Sumitomo Chemical Company, Limited
- Membrane for a vibrating mesh module9 Jul 2026US 2026/0192060 A1Philip Morris Products S. A.
- Filtration membrane, filtration device and manufacturing method of filtration membrane18 Jun 2026US 2026/0166495 A1Industrial Technology Research Institute
- Articles Including an Isoporous Membrane Disposed on a Porous Substrate and Methods of Making the Same11 Jun 2026US 2026/0158450 A1Thermo Fisher Scientific Inc.
Most cited
By later US patents
- Methods, compositions, and automated systems for separating rare cells from fluid samples163US 7,166,443 B2Aviva Biosciences Corporation · 2007
- Cross flow microfilter136US 4,797,211 AKernforschungszentrum Karlsruhe GmbH · 1989
- Microfabricated particle filter99US 5,651,900 AThe Regents of the University of California · 1997
- Microfabricated particle thin film filter and method of making it52US 5,948,255 AThe Regents of the University of California · 1999
- Reactive ion etching method of fabricating nozzles for aerosolized delivery of therapeutic or diagnostic agents40US 6,295,986 B1Aradigm Corporation · 2001