B01D 2311/2623
Ion-exchange
Official title: Ion-Exchange
B01D2311/2623 (Ion-exchange) appears on 134 US grants and 240 published applications in this corpus.
Search patents in B01D- Granted patents
- 134
- Published applications
- 240
- Assignees
- 147
- Inventors
- 558
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 0 |
| 2004 | 1 | 1 |
| 2005 | 0 | 2 |
| 2006 | 3 | 3 |
| 2007 | 0 | 2 |
| 2008 | 1 | 0 |
| 2009 | 1 | 0 |
| 2010 | 1 | 3 |
| 2011 | 0 | 3 |
| 2012 | 1 | 1 |
| 2013 | 1 | 2 |
| 2014 | 1 | 8 |
| 2015 | 2 | 6 |
| 2016 | 3 | 9 |
| 2017 | 5 | 27 |
| 2018 | 9 | 14 |
| 2019 | 11 | 16 |
| 2020 | 17 | 30 |
| 2021 | 17 | 23 |
| 2022 | 8 | 22 |
| 2023 | 18 | 18 |
| 2024 | 14 | 22 |
| 2025 | 15 | 20 |
| 2026 | 4 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method for efficiently extracting and separating high-purity tetrodotoxin from pufferfish viscera18 Aug 2026US 12,709,618 B2Zhongyang Biotechnology (Shanghai) Co., LTD.
- Paper-based micro-concentrator, biological sample detection device and biological sample detection method26 May 2026US 12,636,616 B2National Chung Cheng University
- Methods and systems for treating phosphogypsum-containing water10 Mar 2026US 12,570,559 B2Evoqua Water Technologies LLC
- Process for purifying monoclocal antibodies24 Feb 2026US 12,559,519 B2Fujifilm Diosynth Biotechnologies UK Limited
- Methods for recovering organic acids or salts or lactones thereof from aqueous solutions using water solvent crystallization and compositions thereof23 Dec 2025US 12,503,421 B2Danisco US Inc.
- Hybrid electrochemical and membrane-based processes for treating water with high silica concentrations18 Jun 2026US 2026/0167530 A1TexOPCO, LLC
- Diagnostic Methods and Apparatus for Electrodialysis21 May 2026US 2026/0138092 A1TexOPCO, LLC
- Wastewater concentration device and concentration method7 May 2026US 2026/0125292 A1Kurita Water Industries Ltd.
- Methods and Systems for Treating Phosphogypsum-Containing Water2 Apr 2026US 2026/0092000 A1Evoqua Water Technologies LLC
- Methods to produce a human plasma-derived igg preparation enriched in brain disease-related natural iggs19 Feb 2026US 2026/0049127 A1Takeda Pharmaceutical Company Limited
Most cited
By later US patents
- Integrated system for lithium extraction and conversion27US 10,648,090 B2Lilac Solutions, Inc. · 2020
- Liver support system18US 10,265,453 B2Gambro Lundia AB · 2019
- Water conditioning systems having diversion devices8US 10,549,239 B2Unger Marketing International, LLC · 2020
- Recovery of lithium from an acid solution7US 10,450,633 B22019
- Water conditioning systems7US 10,717,046 B2Unger Marketing International, LLC · 2020