B01J 45/00
Ion-exchange in which a complex or a chelate is formed
Official title: Ion-exchange in which a complex or a chelate is formed; Use of material as complex or chelate forming ion-exchangers; Treatment of material for improving the complex or chelate forming ion-exchange properties (ion-exchange chromatography processes B01D15/36)
B01J45/00 (Ion-exchange in which a complex or a chelate is formed) appears on 499 US grants and 353 published applications in this corpus.
Search patents in B01J- Granted patents
- 499
- Published applications
- 353
- Assignees
- 326
- Inventors
- 1,158
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 5 | 0 |
| 1978 | 6 | 0 |
| 1979 | 4 | 0 |
| 1980 | 12 | 0 |
| 1981 | 7 | 0 |
| 1982 | 4 | 0 |
| 1983 | 8 | 0 |
| 1984 | 2 | 0 |
| 1985 | 6 | 0 |
| 1986 | 9 | 0 |
| 1987 | 8 | 0 |
| 1988 | 3 | 0 |
| 1989 | 7 | 0 |
| 1990 | 9 | 0 |
| 1991 | 9 | 0 |
| 1992 | 14 | 0 |
| 1993 | 17 | 0 |
| 1994 | 13 | 0 |
| 1995 | 8 | 0 |
| 1996 | 10 | 0 |
| 1997 | 17 | 0 |
| 1998 | 9 | 0 |
| 1999 | 13 | 0 |
| 2000 | 13 | 0 |
| 2001 | 16 | 5 |
| 2002 | 13 | 23 |
| 2003 | 22 | 10 |
| 2004 | 8 | 20 |
| 2005 | 7 | 14 |
| 2006 | 12 | 24 |
| 2007 | 10 | 14 |
| 2008 | 8 | 16 |
| 2009 | 6 | 12 |
| 2010 | 8 | 15 |
| 2011 | 5 | 12 |
| 2012 | 5 | 11 |
| 2013 | 12 | 17 |
| 2014 | 12 | 17 |
| 2015 | 21 | 15 |
| 2016 | 16 | 16 |
| 2017 | 15 | 15 |
| 2018 | 11 | 10 |
| 2019 | 10 | 10 |
| 2020 | 9 | 9 |
| 2021 | 8 | 16 |
| 2022 | 6 | 16 |
| 2023 | 8 | 13 |
| 2024 | 14 | 10 |
| 2025 | 13 | 10 |
| 2026 | 5 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Dry ion exchange resin manufacturing method and manufacturing device, and treatment target liquid purifying method and purifying device15 Sep 2026US 12,734,517 B2Organo Corporation
- Resin for removing phosphorus from water body, and preparation method therefor and application thereof25 Aug 2026US 12,715,791 B2Sunresin New Materials Co. Ltd.
- Preparation of metallocene containing cationic polymers for anion exchange applications28 Jul 2026US 12,691,419 B2University of South Carolina
- Agent for selective metal recovery, metal recovery method, and metal elution method17 Mar 2026US 12,577,633 B2Galdieria Co., Ltd.
- Method for producing lithium hydroxide6 Jan 2026US 12,515,960 B2Jx Metals Circular Solutions Co., Ltd.
- Removal of metal species2 Jul 2026US 2026/0184604 A1Seloxium Limited
- Method for forming metal oxide coating30 Apr 2026US 2026/0117388 A1C. Uyemura & Co., Ltd.
- Agent for selective metal recovery, metal recovery method, and metal elution method16 Apr 2026US 2026/0103773 A1Galdieria Co., Ltd.
- Alkyl-substituted hydroxamate resin for use in a generator system9 Oct 2025US 2025/0312770 A1
- Systems and methods of isolation of gallium-687 Aug 2025US 2025/0249381 A1
Most cited
By later US patents
- Ion exchange/chelation resins containing dense star polymers having ion exchange or chelate capabilities214US 4,871,779 AThe Dow Chemical Company · 1989
- Flue gas control system of coal combustion boiler and operating method thereof122US 8,071,060 B2Mitsubishi Heavy Industries, Ltd. · 2011
- Modified dense star polymers118US 4,857,599 AThe Dow Chemical Company · 1989
- Method and system for purifying liquid88US 3,985,648 AAlmag Pollution Control Corporation · 1976
- Removing heavy metal ions from blood56US 4,612,122 A1986