B01D 2323/219
Specific solvent system
B01D2323/219 (Specific solvent system) appears on 183 US grants and 309 published applications in this corpus.
Search patents in B01D- Granted patents
- 183
- Published applications
- 309
- Assignees
- 213
- Inventors
- 957
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 4 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 3 | 0 |
| 1994 | 1 | 0 |
| 1995 | 3 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 3 |
| 2004 | 1 | 6 |
| 2005 | 2 | 9 |
| 2006 | 3 | 9 |
| 2007 | 6 | 11 |
| 2008 | 4 | 6 |
| 2009 | 7 | 6 |
| 2010 | 10 | 5 |
| 2011 | 2 | 12 |
| 2012 | 2 | 9 |
| 2013 | 8 | 9 |
| 2014 | 8 | 8 |
| 2015 | 7 | 14 |
| 2016 | 6 | 9 |
| 2017 | 9 | 11 |
| 2018 | 4 | 7 |
| 2019 | 7 | 16 |
| 2020 | 2 | 17 |
| 2021 | 19 | 20 |
| 2022 | 7 | 18 |
| 2023 | 3 | 25 |
| 2024 | 16 | 36 |
| 2025 | 17 | 24 |
| 2026 | 10 | 19 |
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
- Method of forming a cross-linked polymeric membrane29 Sep 2026US 12,746,516 B2Seppure Pte Ltd
- Surface-treated porous materials having filtration properties and methods of preparing them18 Aug 2026US 12,708,879 B2Aculon, Inc.
- Hollow fiber membrane and method for producing same28 Jul 2026US 12,691,415 B2Kolon Industries, Inc.
- Method for manufacturing a separation membrane based on a polar carbon nanotube dispersion and a polar one-dimensional carbon body28 Jul 2026US 12,691,418 B2Industry-Academic Cooperation Foundation, Yonsei University
- Ion exchange membrane8 Oct 2026US 2026/0307020 A1Khalifa University of Science and Technology
- Conductive hollow fiber membrane and preparation method thereof and membrane assembly24 Sep 2026US 2026/0284601 A1Cangzhou Institute of Tiangong University
- Separation membrane, method for manufacturing same, membrane module for at least one of deaeration and aeration, and device for at least one of deaeration and aeration17 Sep 2026US 2026/0273477 A1Toray Industries, Inc.
- Fabrication of membranes via combined evaporation and precipitant induced phase separation10 Sep 2026US 2026/0264022 A1Sartorius Stedim Biotech GmbH
- Microporous membrane, and preparation method therefor and application thereof6 Aug 2026US 2026/0229711 A1Shenzhen Senior Technology Material Co., Ltd.
Most cited
By later US patents
- Microfabricated filter and shell constructed with a permeable membrane96US 5,919,364 AThe Regents of the University of California · 1999
- Method for continuous fabrication of carbon nanotube networks or membrane materials84US 7,459,121 B2The Florida State University Research Foundation, Inc. · 2008
- Poly(ethylene chlorotrifluoroethylene) membranes80US 7,247,238 B2Siemens Water Technologies Corp. · 2007
- Inorganic anisotropic hollow fibers73US 4,175,153 AMonsanto Company · 1979
- Membrane polymer compositions68US 7,226,541 B2Siemens Water Technology Corp. · 2007