B01D 15/362
Cation-exchange
Official title: {Cation-exchange}
B01D15/362 (Cation-exchange) appears on 517 US grants and 797 published applications in this corpus.
Search patents in B01D- Granted patents
- 517
- Published applications
- 797
- Assignees
- 433
- Inventors
- 1,769
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 3 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 3 | 0 |
| 1992 | 1 | 0 |
| 1993 | 3 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 3 | 0 |
| 1998 | 3 | 0 |
| 1999 | 3 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 1 |
| 2002 | 5 | 4 |
| 2003 | 3 | 8 |
| 2004 | 4 | 10 |
| 2005 | 5 | 13 |
| 2006 | 9 | 13 |
| 2007 | 3 | 14 |
| 2008 | 6 | 11 |
| 2009 | 2 | 19 |
| 2010 | 11 | 16 |
| 2011 | 9 | 20 |
| 2012 | 10 | 20 |
| 2013 | 8 | 20 |
| 2014 | 21 | 38 |
| 2015 | 26 | 45 |
| 2016 | 22 | 34 |
| 2017 | 35 | 46 |
| 2018 | 25 | 50 |
| 2019 | 34 | 64 |
| 2020 | 39 | 41 |
| 2021 | 43 | 66 |
| 2022 | 31 | 62 |
| 2023 | 38 | 46 |
| 2024 | 34 | 44 |
| 2025 | 37 | 56 |
| 2026 | 23 | 36 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- System and method for capturing carbon dioxide from a humidity adjusted air stream1 Sep 2026US 12,722,118 B2
- Method for improving lithium yield in a direct lithium extraction process11 Aug 2026US 12,702,987 B2Aquatech International Corporation
- Method of producing and refining carrier-free lutetium-177 using chromatography11 Aug 2026US 12,703,897 B2Korea Atomic Energy Research Institute
- Continuous ion exchange processes for separating rare earth elements16 Jun 2026US 12,655,499 B2
- Integrated dual-mode chromatography to enrich extracellular vesicles from plasma9 Jun 2026US 12,649,116 B2The General Hospital Corporation
- Two-in-one chromatography systems for use with small volume samples and with automated liquid handlers8 Oct 2026US 2026/0306967 A1Integrated Micro-Chromatography Systems, Inc.
- Process for preparing extracellular vesicles1 Oct 2026US 2026/0295460 A1Lonza Sales AG
- Methods of reducing the enzymatic hydrolysis activity rate in a composition obtained from a purification platform17 Sep 2026US 2026/0274889 A1Genentech, Inc.
- Process for at least partially removing aldehydes from a composition containing at least one compound having at least one alkylene oxide unit10 Sep 2026US 2026/0263965 A1Zschimmer & Schwarz Chemie GmbH
- Water softening structure and regeneration method therefor10 Sep 2026US 2026/0265086 A1Canature Health Technology Group Co., Ltd.
Most cited
By later US patents
- Modified siliceous chromatographic supports159US 4,724,207 ACuno Incorporated · 1988
- Polymeric microbeads and method of preparation110US 5,583,162 ABiopore Corporation · 1996
- Polymeric microbeads81US 5,863,957 ABiopore Corporation · 1999
- Polymeric microbeads and method of preparation78US 5,653,922 ABiopore Corporation · 1997
- Chromatographic process for the separation of nucleic acids71US 4,699,717 A1987