B01D 2325/34
Molecular weight or degree of polymerisation
B01D2325/34 (Molecular weight or degree of polymerisation) appears on 204 US grants and 307 published applications in this corpus.
Search patents in B01D- Granted patents
- 204
- Published applications
- 307
- Assignees
- 197
- Inventors
- 762
- Latest grant
- 21 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 3 | 0 |
| 1999 | 4 | 0 |
| 2000 | 6 | 0 |
| 2001 | 2 | 0 |
| 2002 | 4 | 2 |
| 2003 | 2 | 2 |
| 2004 | 1 | 3 |
| 2005 | 3 | 1 |
| 2006 | 1 | 6 |
| 2007 | 1 | 7 |
| 2008 | 5 | 8 |
| 2009 | 2 | 13 |
| 2010 | 7 | 6 |
| 2011 | 5 | 4 |
| 2012 | 5 | 4 |
| 2013 | 2 | 6 |
| 2014 | 8 | 7 |
| 2015 | 7 | 8 |
| 2016 | 2 | 9 |
| 2017 | 8 | 22 |
| 2018 | 8 | 14 |
| 2019 | 13 | 11 |
| 2020 | 8 | 21 |
| 2021 | 15 | 30 |
| 2022 | 9 | 25 |
| 2023 | 10 | 23 |
| 2024 | 22 | 25 |
| 2025 | 18 | 24 |
| 2026 | 8 | 26 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Hollow fiber and a process for preparation thereof21 Jul 2026US 12,685,972 B2E. & J. Gallo Winery
- Microporous membranes, underlayment, roofing, flashing, wrap, and methods for making and using the same14 Jul 2026US 12,678,741 B2Daramic, LLC
- Integrated dual-mode chromatography to enrich extracellular vesicles from plasma9 Jun 2026US 12,649,116 B2The General Hospital Corporation
- Cross-linkable zwitterionic polymers and their use in membrane filters21 Apr 2026US 12,605,680 B2Trustees of Tufts College
- Polyethylene microporous membrane, method for manufacturing the same, and separator including microporous membrane21 Apr 2026US 12,609,412 B2SK ie technology Co., Ltd.
- Substrate for liquid filter and liquid filter8 Oct 2026US 2026/0307016 A1Teijin Limited
- Process for making a cheese24 Sep 2026US 2026/0283178 A1Centre National De La Recherche Scientifique
- Substrate for liquid filter and liquid filter17 Sep 2026US 2026/0273473 A1Teijin Limited
- Hollow fiber and a process for preparation thereof10 Sep 2026US 2026/0264024 A1
- Polyolefin microporous membrane13 Aug 2026US 2026/0233173 A1Teijin Limited
Most cited
By later US patents
- Hydrophilic membrane122US 6,039,872 APall Corporation · 2000
- Hydrophilic membrane110US 6,083,393 APall Corporation · 2000
- Polyamide membrane with controlled surface properties107US 4,707,266 APall Corporation · 1987
- System for manufacturing reinforced three-zone microporous membrane71US 6,413,070 B1Cuno Incorporated · 2002
- Polysulfone-based hollow fiber membrane and process for manufacturing the same65US 5,340,480 AKuraray Co., Ltd. · 1994