B01J 39/08
Use of material as cation exchangers
Official title: Use of material as cation exchangers; Treatment of material for improving the cation exchange properties
B01J39/08 (Use of material as cation exchangers) appears on 1,149 US grants and 1,161 published applications in this corpus.
Search patents in B01J- Granted patents
- 1,149
- Published applications
- 1,161
- Assignees
- 675
- Inventors
- 2,953
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 13 | 0 |
| 1977 | 10 | 0 |
| 1978 | 12 | 0 |
| 1979 | 13 | 0 |
| 1980 | 15 | 0 |
| 1981 | 22 | 0 |
| 1982 | 15 | 0 |
| 1983 | 21 | 0 |
| 1984 | 19 | 0 |
| 1985 | 11 | 0 |
| 1986 | 17 | 0 |
| 1987 | 20 | 0 |
| 1988 | 10 | 0 |
| 1989 | 10 | 0 |
| 1990 | 9 | 0 |
| 1991 | 14 | 0 |
| 1992 | 17 | 0 |
| 1993 | 19 | 0 |
| 1994 | 13 | 0 |
| 1995 | 12 | 0 |
| 1996 | 8 | 0 |
| 1997 | 24 | 0 |
| 1998 | 8 | 0 |
| 1999 | 15 | 0 |
| 2000 | 9 | 0 |
| 2001 | 19 | 8 |
| 2002 | 14 | 17 |
| 2003 | 22 | 15 |
| 2004 | 13 | 29 |
| 2005 | 16 | 23 |
| 2006 | 18 | 31 |
| 2007 | 12 | 15 |
| 2008 | 11 | 16 |
| 2009 | 8 | 16 |
| 2010 | 14 | 22 |
| 2011 | 12 | 31 |
| 2012 | 14 | 51 |
| 2013 | 22 | 42 |
| 2014 | 36 | 64 |
| 2015 | 31 | 70 |
| 2016 | 43 | 73 |
| 2017 | 54 | 98 |
| 2018 | 75 | 71 |
| 2019 | 71 | 79 |
| 2020 | 69 | 62 |
| 2021 | 44 | 64 |
| 2022 | 38 | 53 |
| 2023 | 47 | 53 |
| 2024 | 39 | 55 |
| 2025 | 35 | 58 |
| 2026 | 16 | 45 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Cation exchange membrane and method for producing same1 Sep 2026US 12,722,125 B2Astom 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.
- Method for producing lithium-containing solution23 Jun 2026US 12,662,389 B2Sumitomo Metal Mining Co., Ltd.
- Continuous ion exchange processes for separating rare earth elements16 Jun 2026US 12,655,499 B2
- Lithium ion adsorbents19 May 2026US 12,629,657 B2Empower Innovation & Technology LLC
- Novel materials and methods for refining processes17 Sep 2026US 2026/0273436 A1Lihme Protein Solutions ApS
- Coated sorbent materials for the removal of ammonium and associated method of use10 Sep 2026US 2026/0263509 A1HemoCleanse Technologies LLC
- Filler for ion exchange chromatography, method for producing same, and method for measuring hemoglobin component3 Sep 2026US 2026/0257216 A1Sekisui Medical Co., Ltd.
- Ceramic ion exchange materials with hydrophobic groups3 Sep 2026US 2026/0257217 A1Membrion, Inc.
- Process for recovery of lithium from brine3 Sep 2026US 2026/0257931 A1Aquatech International Corporation
Most cited
By later US patents
- Affinity matrices of modified polysaccharide supports427US 5,059,654 ACuno Incorporated · 1991
- Urease in insoluble form for converting urea present in a liquid221US 3,989,622 ACCI Life Systems, Inc. · 1976
- Ion exchange/chelation resins containing dense star polymers having ion exchange or chelate capabilities214US 4,871,779 AThe Dow Chemical Company · 1989
- Method and composition for removing uremic toxins in dialysis processes191US 7,241,272 B2Baxter International Inc. · 2007
- Method of synthesizing zirconium phosphate particles175US 7,566,432 B2Renal Solutions, Inc. · 2009