B01J 41/08
Use of material as anion exchangers
Official title: Use of material as anion exchangers; Treatment of material for improving the anion exchange properties
B01J41/08 (Use of material as anion exchangers) appears on 760 US grants and 901 published applications in this corpus.
Search patents in B01J- Granted patents
- 760
- Published applications
- 901
- Assignees
- 493
- Inventors
- 2,158
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 4 | 0 |
| 1978 | 11 | 0 |
| 1979 | 8 | 0 |
| 1980 | 12 | 0 |
| 1981 | 12 | 0 |
| 1982 | 13 | 0 |
| 1983 | 14 | 0 |
| 1984 | 8 | 0 |
| 1985 | 6 | 0 |
| 1986 | 7 | 0 |
| 1987 | 3 | 0 |
| 1988 | 4 | 0 |
| 1989 | 3 | 0 |
| 1990 | 4 | 0 |
| 1991 | 6 | 0 |
| 1992 | 11 | 0 |
| 1993 | 9 | 0 |
| 1994 | 10 | 0 |
| 1995 | 7 | 0 |
| 1996 | 0 | 0 |
| 1997 | 5 | 0 |
| 1998 | 5 | 0 |
| 1999 | 5 | 0 |
| 2000 | 5 | 0 |
| 2001 | 3 | 2 |
| 2002 | 2 | 13 |
| 2003 | 10 | 16 |
| 2004 | 9 | 14 |
| 2005 | 13 | 18 |
| 2006 | 10 | 13 |
| 2007 | 11 | 12 |
| 2008 | 6 | 14 |
| 2009 | 6 | 20 |
| 2010 | 8 | 19 |
| 2011 | 10 | 20 |
| 2012 | 10 | 18 |
| 2013 | 13 | 26 |
| 2014 | 16 | 38 |
| 2015 | 29 | 46 |
| 2016 | 32 | 65 |
| 2017 | 47 | 64 |
| 2018 | 51 | 49 |
| 2019 | 41 | 50 |
| 2020 | 48 | 75 |
| 2021 | 45 | 56 |
| 2022 | 29 | 51 |
| 2023 | 35 | 46 |
| 2024 | 40 | 56 |
| 2025 | 39 | 50 |
| 2026 | 20 | 50 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Device and method for passive collection of atmospheric carbon dioxide with a double-walled harvest chamber29 Sep 2026US 12,746,508 B2Arizona Board of Regents on behalf of Arizona State University
- Formulations and processes for treating water from impacted sources25 Aug 2026US 12,714,991 B2Brown University
- Structured organic films containing imidazolium having cationic charge functionality and methods thereof21 Jul 2026US 12,686,743 B2Genesee Valley Innovations, LLC
- Physically reinforced structured organic film (SOF) anion exchange membranes (AEMs)12 May 2026US 12,623,212 B2Xerox Corporation
- Method for producing anion exchange resin and method for producing electrolyte membrane12 May 2026US 12,624,157 B2Takahata Precision Co., Ltd.
- Regeneration of anion exchange resins1 Oct 2026US 2026/0295573 A1
- Single-ion electrolytes for solid-state alkaline batteries24 Sep 2026US 2026/0291007 A1The Government of the United States of America, as represented by the Secretary of the Navy
- Coated sorbent materials for the removal of ammonium and associated method of use10 Sep 2026US 2026/0263509 A1HemoCleanse Technologies LLC
- Porous organic materials for iodine remediation in water10 Sep 2026US 2026/0265085 A1
- Ceramic ion exchange materials with hydrophobic groups3 Sep 2026US 2026/0257217 A1Membrion, Inc.
Most cited
By later US patents
- Affinity matrices of modified polysaccharide supports427US 5,059,654 ACuno Incorporated · 1991
- Method and composition for removing uremic toxins in dialysis processes191US 7,241,272 B2Baxter International Inc. · 2007
- Method and composition for removing uremic toxins in dialysis processes142US 8,002,726 B2Baxter International Inc. · 2011
- Polymerization processes and products therefrom125US 4,224,415 ARohm and Haas Company · 1980
- Process for preparing macroreticular resins, copolymers and products of said process123US 4,382,124 ARohm and Haas Company · 1983