B01D 2323/12
Specific ratios of components used
B01D2323/12 (Specific ratios of components used) appears on 733 US grants and 646 published applications in this corpus.
Search patents in B01D- Granted patents
- 733
- Published applications
- 646
- Assignees
- 476
- Inventors
- 2,146
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 5 | 0 |
| 1978 | 5 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 3 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 13 | 0 |
| 1987 | 14 | 0 |
| 1988 | 17 | 0 |
| 1989 | 15 | 0 |
| 1990 | 26 | 0 |
| 1991 | 18 | 0 |
| 1992 | 20 | 0 |
| 1993 | 12 | 0 |
| 1994 | 13 | 0 |
| 1995 | 9 | 0 |
| 1996 | 10 | 0 |
| 1997 | 14 | 0 |
| 1998 | 23 | 0 |
| 1999 | 19 | 0 |
| 2000 | 24 | 0 |
| 2001 | 21 | 8 |
| 2002 | 21 | 17 |
| 2003 | 15 | 30 |
| 2004 | 20 | 25 |
| 2005 | 16 | 22 |
| 2006 | 13 | 26 |
| 2007 | 14 | 29 |
| 2008 | 14 | 19 |
| 2009 | 13 | 24 |
| 2010 | 16 | 35 |
| 2011 | 26 | 21 |
| 2012 | 24 | 21 |
| 2013 | 11 | 16 |
| 2014 | 22 | 20 |
| 2015 | 11 | 30 |
| 2016 | 14 | 24 |
| 2017 | 14 | 26 |
| 2018 | 12 | 16 |
| 2019 | 18 | 25 |
| 2020 | 14 | 24 |
| 2021 | 29 | 35 |
| 2022 | 18 | 37 |
| 2023 | 13 | 35 |
| 2024 | 30 | 32 |
| 2025 | 31 | 24 |
| 2026 | 14 | 25 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Organosilica membranes, methods of making same, and uses thereof11 Aug 2026US 12,702,957 B2The Research Foundation for The State University of New York
- Soy proteins for preparation of gels, fibers and films7 Jul 2026US 12,673,031 B2The Regents of the University of California
- Method for preparing porous aromatic framework membranes based on inorganic salt template method7 Jul 2026US 12,673,297 B2
- Fluid separation membranes and use thereof7 Jul 2026US 12,673,298 B1Semicom Dwc-LLC
- High temperature-resistant composite nanofiltration membrane and preparation method thereof9 Jun 2026US 12,649,128 B2Hunan Ovay Technology Co., Ltd.
- Conductive hollow fiber membrane and preparation method thereof and membrane assembly24 Sep 2026US 2026/0284601 A1Cangzhou Institute of Tiangong University
- Acid-resistant and alkali-resistant composite nanofiltration membrane, and preparation method therefor and use thereof17 Sep 2026US 2026/0273478 A1China Petroleum & Chemical Corporation
- Gas purification method10 Sep 2026US 2026/0264002 A1Shenyang Starlight New Materials Co., Ltd.
- Fabrication of membranes via combined evaporation and precipitant induced phase separation10 Sep 2026US 2026/0264022 A1Sartorius Stedim Biotech GmbH
- 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
Most cited
By later US patents
- Asymmetric membranes315US 4,629,563 ABrunswick Corporation · 1986
- Biocompatible polymer membranes and methods of preparation of three dimensional membrane structures297US 5,514,378 AChildren's Medical Center Corporation · 1996
- Process for preparing hydrophilic polyamide membrane filter media and product277US 4,340,479 APall Corporation · 1982
- Steam reformer with internal hydrogen purification269US 5,997,594 ANorthwest Power Systems, LLC · 1999
- Orientied microporous film214US 4,867,881 AMinnesota Minning and Manufacturing Company · 1989