B01D 2323/14
Ageing features
B01D2323/14 (Ageing features) appears on 33 US grants and 50 published applications in this corpus.
Search patents in B01D- Granted patents
- 33
- Published applications
- 50
- Assignees
- 52
- Inventors
- 162
- Latest grant
- 9 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 3 |
| 2006 | 0 | 0 |
| 2007 | 1 | 3 |
| 2008 | 2 | 1 |
| 2009 | 0 | 5 |
| 2010 | 1 | 1 |
| 2011 | 0 | 2 |
| 2012 | 3 | 3 |
| 2013 | 3 | 0 |
| 2014 | 1 | 2 |
| 2015 | 0 | 3 |
| 2016 | 1 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 2 |
| 2019 | 1 | 1 |
| 2020 | 1 | 2 |
| 2021 | 1 | 6 |
| 2022 | 3 | 6 |
| 2023 | 2 | 3 |
| 2024 | 4 | 3 |
| 2025 | 3 | 3 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- High temperature-resistant composite nanofiltration membrane and preparation method thereof9 Jun 2026US 12,649,128 B2Hunan Ovay Technology Co., Ltd.
- Virus removal membrane and method for manufacturing virus removal membrane5 May 2026US 12,616,940 B2Asahi Kasei Life Science Corporation
- Light-driven filtration antibacterial composite membrane and preparation method and use thereof6 May 2025US 12,290,787 B2Minjiang University
- Separation membrane and methods of preparation thereof25 Mar 2025US 12,257,553 B2Aspen Products Group, Inc.
- Membranes for contaminant removal from natural gas and methods for use thereof4 Feb 2025US 12,215,288 B2Chevron U. S. A. Inc.
- Mil-125-nh2 metal organic framework nanocomposite membrane for treating oily wastewater and a method of preparation thereof10 Sep 2026US 2026/0264025 A1King Fahd University of Petroleum and Minerals
- Biaxially oriented microporous membrane6 Mar 2025US 2025/0074032 A1Celgard, LLC
- Process for preparing a polybenzoxazine-derived carbon membrane, carbon membrane, use of said membrane for separating industrial gases and permeation module6 Feb 2025US 2025/0041793 A1Petroleo Brasileiro S.A. - Petrobras
- Process for obtaining reduced graphene oxide membranes, reactor for carrying out said process, reduced graphene oxide membranes obtained from this process and their uses in a separation process30 Jan 2025US 2025/0033000 A1
- Thermally stable porous membrane and its manufacturing method24 Oct 2024US 2024/0351876 A1Korea University Research and Business Foundation
Most cited
By later US patents
- Process to form mesostructured films157US 5,858,457 ASandia Corporation · 1999
- Process for fabricating porous silicone product89US 5,362,761 ADow Corning Toray Silicone Co., Ltd. · 1994
- Biaxially oriented microporous membrane31US 8,795,565 B2Celgard, LLC · 2014
- Membrane comprising a porous carrier and a layer of a molecular sieve and its preparation28US 6,472,016 B1Societe des Ceramiques Techniques · 2002
- Method of creating silica ceramic membranes18US 5,194,200 AWisconsin Alumni Research Foundation · 1993