B01J 49/06
Containing cationic exchangers
Official title: containing cationic exchangers
B01J49/06 (Containing cationic exchangers) appears on 128 US grants and 160 published applications in this corpus.
Search patents in B01J- Granted patents
- 128
- Published applications
- 160
- Assignees
- 122
- Inventors
- 404
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 3 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 1 |
| 2002 | 1 | 0 |
| 2003 | 1 | 2 |
| 2004 | 1 | 4 |
| 2005 | 1 | 4 |
| 2006 | 0 | 4 |
| 2007 | 6 | 2 |
| 2008 | 2 | 2 |
| 2009 | 1 | 4 |
| 2010 | 0 | 5 |
| 2011 | 2 | 8 |
| 2012 | 3 | 9 |
| 2013 | 3 | 16 |
| 2014 | 9 | 11 |
| 2015 | 10 | 6 |
| 2016 | 6 | 6 |
| 2017 | 10 | 5 |
| 2018 | 9 | 4 |
| 2019 | 3 | 9 |
| 2020 | 6 | 11 |
| 2021 | 5 | 8 |
| 2022 | 6 | 11 |
| 2023 | 5 | 6 |
| 2024 | 7 | 8 |
| 2025 | 8 | 11 |
| 2026 | 2 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Resin for removing phosphorus from water body, and preparation method therefor and application thereof25 Aug 2026US 12,715,791 B2Sunresin New Materials Co. Ltd.
- Adsorbent, its preparation and use3 Feb 2026US 12,539,502 B2City University of Hong Kong
- Method for versatile ion-exchange extraction of lithium from natural or technological lithium-containing brine by using a lithium-selective inorganic sorbent2 Dec 2025US 12,486,556 B2
- Method for preparing hypochlorous acid aqueous solution and method for regenerating weakly acidic cation exchanger28 Oct 2025US 12,454,457 B2Evatec AG
- Systems and methods for selective recovery of metals from ion exchange resins16 Sep 2025US 12,416,064 B2Battelle Energy Alliance, LLC
- Method for producing lithium-containing solution25 Jun 2026US 2026/0175197 A1Sumitomo Metal Mining Co., Ltd.
- Method for producing cation exchange resin and method for refining organic acid solution12 Feb 2026US 2026/0042089 A1Organo Corporation
- Impurity acquisition method and impurity acquisition apparatus for acquiring metal impurities in organic solvents15 Jan 2026US 2026/0014494 A1Organo Corporation
- Methods and apparatus for regeneration of resin for water purification11 Dec 2025US 2025/0376390 A1Phibro-Tech, Inc.
- Water Softener Apparatus Including a Salt Level Indicator Device27 Nov 2025US 2025/0362167 A1Harvey Water Softeners Limited
Most cited
By later US patents
- Method for complex processing of sea-water36US 5,814,224 AAktsionernaya Kompania Po Transportu Nefti "Transneft" · 1998
- Water treatment method31US 5,310,488 AKinetico Incorporated · 1994
- Ion exchange and regeneration process for separation and removal of iron (III) ions from aqueous sulfuric acid metal ion-containing solutions27US 5,582,737 AEichrom Industries, Inc. · 1996
- Regeneration of acidic cationic exchange resin used in the reactivation of spent alkanolamine26US 5,006,258 AConoco Inc. · 1991
- Water treatment process26US 6,669,849 B1Orica Australia Pty Ltd · 2003