B01D 2323/40
In-situ membrane formation
Official title: in-situ membrane formation
B01D2323/40 (In-situ membrane formation) appears on 228 US grants and 337 published applications in this corpus.
Search patents in B01D- Granted patents
- 228
- Published applications
- 337
- Assignees
- 185
- Inventors
- 898
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 3 | 0 |
| 2001 | 4 | 0 |
| 2002 | 2 | 0 |
| 2003 | 1 | 2 |
| 2004 | 1 | 3 |
| 2005 | 0 | 2 |
| 2006 | 1 | 2 |
| 2007 | 2 | 3 |
| 2008 | 1 | 7 |
| 2009 | 2 | 2 |
| 2010 | 4 | 11 |
| 2011 | 2 | 2 |
| 2012 | 7 | 12 |
| 2013 | 4 | 19 |
| 2014 | 7 | 19 |
| 2015 | 11 | 28 |
| 2016 | 14 | 31 |
| 2017 | 19 | 17 |
| 2018 | 14 | 15 |
| 2019 | 17 | 20 |
| 2020 | 12 | 25 |
| 2021 | 19 | 27 |
| 2022 | 13 | 15 |
| 2023 | 15 | 26 |
| 2024 | 24 | 21 |
| 2025 | 14 | 20 |
| 2026 | 7 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Cross-linked mineral membranes6 Oct 2026US 12,752,244 B2Uchicago Argonne, LLC
- Method of preparing reverse osmosis membrane with charged hydrogel and polyamide double network8 Sep 2026US 12,728,388 B2
- Composite semipermeable membrane, spiral membrane element, water treatment system, and water treatment method18 Aug 2026US 12,708,880 B2Nitto Denko Corporation
- High temperature-resistant composite nanofiltration membrane and preparation method thereof9 Jun 2026US 12,649,128 B2Hunan Ovay Technology Co., Ltd.
- Controlled printing surface and method of forming topographical features on a controlled printing surface9 Jun 2026US 12,649,264 B2Henkel AG & Co. KGaA
- Contorted polyamide membranes and methods of use thereof8 Oct 2026US 2026/0307019 A1University of Houston System
- Composite semipermeable membrane, composite semipermeable membrane module, fluid separation device, and method for producing composite semipermeable membrane6 Aug 2026US 2026/0225045 A1Toray Industries, Inc.
- Method for making cross-linkable zwitterionic polymer membranes and their use23 Jul 2026US 2026/0208123 A1Trustees of Tufts College
- Ceramic nanofiltration membrane with polymers grafted into the pores and method of producing same2 Jul 2026US 2026/0183722 A1Vito NV
- Methods of making lithium selective nanofiltration membranes and their applications2 Jul 2026US 2026/0183723 A1Greenvi Corp.
Most cited
By later US patents
- Hydrophilic membrane122US 6,039,872 APall Corporation · 2000
- Highly porous polyvinylidene difluoride membranes115US 6,146,747 AUSF Filtration and Separations Group, Inc. · 2000
- Hydrophilic membrane110US 6,083,393 APall Corporation · 2000
- Microporous membranes and uses thereof103US 6,258,276 B1McMaster University · 2001
- Preparation of porous substrates having well defined morphology58US 4,954,381 AThe Research Foundation of State University of New York · 1990