B01D 2325/0283
Pore size
B01D2325/0283 (Pore size) appears on 749 US grants and 1,261 published applications in this corpus.
Search patents in B01D- Granted patents
- 749
- Published applications
- 1,261
- Assignees
- 682
- Inventors
- 3,309
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 3 | 0 |
| 1990 | 6 | 0 |
| 1991 | 6 | 0 |
| 1992 | 6 | 0 |
| 1993 | 8 | 0 |
| 1994 | 5 | 0 |
| 1995 | 5 | 0 |
| 1996 | 3 | 0 |
| 1997 | 9 | 0 |
| 1998 | 8 | 0 |
| 1999 | 7 | 0 |
| 2000 | 10 | 0 |
| 2001 | 8 | 2 |
| 2002 | 3 | 3 |
| 2003 | 4 | 6 |
| 2004 | 6 | 12 |
| 2005 | 4 | 12 |
| 2006 | 7 | 15 |
| 2007 | 9 | 27 |
| 2008 | 7 | 20 |
| 2009 | 10 | 27 |
| 2010 | 13 | 27 |
| 2011 | 8 | 27 |
| 2012 | 13 | 29 |
| 2013 | 19 | 31 |
| 2014 | 22 | 28 |
| 2015 | 16 | 45 |
| 2016 | 27 | 51 |
| 2017 | 26 | 64 |
| 2018 | 36 | 46 |
| 2019 | 35 | 74 |
| 2020 | 46 | 121 |
| 2021 | 63 | 107 |
| 2022 | 63 | 102 |
| 2023 | 68 | 84 |
| 2024 | 56 | 113 |
| 2025 | 49 | 98 |
| 2026 | 48 | 90 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Eco-friendly membranes for separations6 Oct 2026US 12,752,241 B2Khalifa University of Science and Technology
- Hollow fiber microporous membrane, and gas separation membrane module with same built thereinto6 Oct 2026US 12,752,243 B2Toray Industries, Inc.
- circCDK13-enriched engineered small extracellular vesicle (E-sEV), and preparation method and use thereof22 Sep 2026US 12,740,945 B2Chinese Pla General Hospital
- Carbon molecular sieve membranes based on oxygen-free polymeric precursors22 Sep 2026US 12,741,250 B2King Abdullah University of Science and Technology
- Oil-water separation systems and methods of separating aqueous emulsions15 Sep 2026US 12,734,486 B2Aculon, Inc.
- Modular multiplatform system for mrna drug production8 Oct 2026US 2026/0306407 A1BioNTech SE
- Direct air capture of carbon dioxide with nanofluidic flows8 Oct 2026US 2026/0307002 A1National Technology & Engineering Solutions of Sandia, LLC
- Substrate for liquid filter and liquid filter8 Oct 2026US 2026/0307016 A1Teijin Limited
- Purge device and production method for separation membrane1 Oct 2026US 2026/0295514 A1Mitsubishi Heavy Industries, Ltd.
- System And Method For Preparation And Sterilization Of Buffer Or Cell Culture Medium1 Oct 2026US 2026/0297492 A1
Most cited
By later US patents
- Porous PTFE materials and articles produced therefrom267US 7,306,729 B2Gore Enterprise Holdings, Inc. · 2007
- Microfabricated filter with specially constructed channel walls, and containment well and capsule constructed with such filters171US 5,798,042 AThe Regents of the University of California · 1998
- Highly assymetric, hydrophilic, microfiltration membranes having large pore diameters156US 6,045,899 AUSF Filtration and Separations Group, Inc. · 2000
- Preparation of a polymeric hydrogel containing micropores and macropores for use as a cell culture substrate134US 5,244,799 A1993
- Dispersing casting of integral skinned highly asymmetric polymer membranes124US 4,774,039 ABrunswick Corporation · 1988