B01J 41/04
Processes using organic exchangers
B01J41/04 (Processes using organic exchangers) appears on 561 US grants and 693 published applications in this corpus.
Search patents in B01J- Granted patents
- 561
- Published applications
- 693
- Assignees
- 490
- Inventors
- 1,806
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 8 | 0 |
| 1977 | 4 | 0 |
| 1978 | 6 | 0 |
| 1979 | 5 | 0 |
| 1980 | 11 | 0 |
| 1981 | 4 | 0 |
| 1982 | 1 | 0 |
| 1983 | 3 | 0 |
| 1984 | 4 | 0 |
| 1985 | 5 | 0 |
| 1986 | 2 | 0 |
| 1987 | 4 | 0 |
| 1988 | 8 | 0 |
| 1989 | 6 | 0 |
| 1990 | 6 | 0 |
| 1991 | 6 | 0 |
| 1992 | 10 | 0 |
| 1993 | 10 | 0 |
| 1994 | 5 | 0 |
| 1995 | 5 | 0 |
| 1996 | 5 | 0 |
| 1997 | 9 | 0 |
| 1998 | 6 | 0 |
| 1999 | 7 | 0 |
| 2000 | 7 | 0 |
| 2001 | 7 | 1 |
| 2002 | 13 | 8 |
| 2003 | 8 | 19 |
| 2004 | 6 | 17 |
| 2005 | 10 | 21 |
| 2006 | 8 | 23 |
| 2007 | 11 | 16 |
| 2008 | 8 | 17 |
| 2009 | 9 | 14 |
| 2010 | 13 | 18 |
| 2011 | 11 | 28 |
| 2012 | 15 | 20 |
| 2013 | 9 | 14 |
| 2014 | 5 | 20 |
| 2015 | 15 | 19 |
| 2016 | 15 | 23 |
| 2017 | 18 | 31 |
| 2018 | 19 | 31 |
| 2019 | 19 | 49 |
| 2020 | 34 | 49 |
| 2021 | 37 | 51 |
| 2022 | 29 | 38 |
| 2023 | 26 | 38 |
| 2024 | 24 | 44 |
| 2025 | 31 | 39 |
| 2026 | 14 | 45 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Formulations and processes for treating water from impacted sources25 Aug 2026US 12,714,991 B2Brown University
- Physically reinforced structured organic film (SOF) anion exchange membranes (AEMs)12 May 2026US 12,623,212 B2Xerox Corporation
- Process for removing cyanide from a cyanide-bearing aqueous fluid21 Apr 2026US 12,606,462 B2Commonwealth Scientific and Industrial Research Organisation
- Single-ion electrolytes for solid-state alkaline batteries14 Apr 2026US 12,603,388 B2The Government of the United States of America, as represented by the Secretary of the Navy
- Maintaining method for cooling system24 Mar 2026US 12,582,979 B2Toyota Jidosha Kabushiki Kaisha
- 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
- Porous organic materials for iodine remediation in water10 Sep 2026US 2026/0265085 A1
- Cationic Compounds for Anion Exchange Membranes3 Sep 2026US 2026/0257990 A1Agfa-Gevaert
- Water treatment apparatus and control method of water treatment apparatus20 Aug 2026US 2026/0242258 A1Samsung Electronics Co., Ltd.
Most cited
By later US patents
- Method and apparatus for extracting carbon dioxide from air125US 7,708,806 B2Global Research Technologies, LLC · 2010
- Method and apparatus for filtration with plural ultraviolet treatment stages112US 5,236,595 AInternational Environmental Systems, Inc., USA · 1993
- Recovery of lithium from brine85US 4,291,001 AThe Dow Chemical Company · 1981
- Combined membrane and sorption process for selective ion removal79US 4,806,244 AThe Dow Chemical Company · 1989
- Reversible oxygen sorbent compositions66US 5,208,335 AAir Products and Chemicals, Inc. · 1993