B01D 2323/16
Swelling agents
B01D2323/16 (Swelling agents) appears on 52 US grants and 38 published applications in this corpus.
Search patents in B01D- Granted patents
- 52
- Published applications
- 38
- Assignees
- 50
- Inventors
- 131
- Latest grant
- 7 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 3 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 3 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 3 | 0 |
| 1994 | 3 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 3 |
| 2003 | 1 | 3 |
| 2004 | 0 | 1 |
| 2005 | 2 | 2 |
| 2006 | 1 | 0 |
| 2007 | 1 | 1 |
| 2008 | 1 | 2 |
| 2009 | 0 | 1 |
| 2010 | 0 | 2 |
| 2011 | 0 | 4 |
| 2012 | 2 | 0 |
| 2013 | 0 | 1 |
| 2014 | 1 | 0 |
| 2015 | 1 | 0 |
| 2016 | 3 | 2 |
| 2017 | 0 | 2 |
| 2018 | 1 | 1 |
| 2019 | 0 | 1 |
| 2020 | 2 | 2 |
| 2021 | 1 | 3 |
| 2022 | 2 | 2 |
| 2023 | 0 | 1 |
| 2024 | 4 | 1 |
| 2025 | 2 | 1 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Affinity membrane and method of preparation7 Oct 2025US 12,434,201 B2Donaldson Company, Inc.
- Membranes for contaminant removal from natural gas and methods for use thereof4 Feb 2025US 12,215,288 B2Chevron U. S. A. Inc.
- Porous hollow fiber membrane24 Dec 2024US 12,172,135 B2DAICEN MEMBRANE-SYSTEMS Ltd.
- Monolayer, composite, gas separation material, filter, gas separation device and method for manufacturing composite29 Oct 2024US 12,128,366 B2Jccl, Inc.
- Method for preparation of water-treatment separation membrane and water-treatment separation membrane prepared thereby2 Apr 2024US 11,944,940 B2LG Chem.Ltd.
- Highly co2-selective asymmetric polymeric membranes and process for preparing the same30 Apr 2026US 2026/0115650 A1Sogang University Research & Business Development Foundation
- Affinity membrane and method of preparation12 Mar 2026US 2026/0070023 A1Donaldson Company, Inc.
- Monolayer, composite, gas separation material, filter, gas separation device and method for manufacturing composite9 Jan 2025US 2025/0010248 A1Jccl, Inc.
- Affinity membrane and method of preparation28 Nov 2024US 2024/0390862 A1Donaldson Company, Inc.
- Monolayer, composite, gas separation material, filter, gas separation device and method for manufacturing composite4 May 2023US 2023/0134668 A1Kyushu University, National University Corporation
Most cited
By later US patents
- Method of making polytetrafluoroethylene composite sheet203US 4,153,661 AMinnesota Mining and Manufacturing Company · 1979
- Solid gel membrane separator in rechargeable electrochemical cells105US 6,358,651 B1Reveo, Inc. · 2002
- Process for preparing microporous hollow fibers57US 4,290,987 ACelanese Corporation · 1981
- Multi-layer laminates of microporous films57US 4,863,792 AMinnesota Mining and Manufacturing Company · 1989
- Solvent stretch process for preparing a microporous film48US 4,257,997 ACelanese Corporation · 1981