B01D 61/44
Ion-selective electrodialysis
B01D61/44 (Ion-selective electrodialysis) appears on 1,364 US grants and 1,386 published applications in this corpus.
Search patents in B01D- Granted patents
- 1,364
- Published applications
- 1,386
- Assignees
- 737
- Inventors
- 2,926
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 15 | 0 |
| 1977 | 13 | 0 |
| 1978 | 17 | 0 |
| 1979 | 12 | 0 |
| 1980 | 21 | 0 |
| 1981 | 13 | 0 |
| 1982 | 13 | 0 |
| 1983 | 10 | 0 |
| 1984 | 7 | 0 |
| 1985 | 14 | 0 |
| 1986 | 25 | 0 |
| 1987 | 26 | 0 |
| 1988 | 13 | 0 |
| 1989 | 20 | 0 |
| 1990 | 13 | 0 |
| 1991 | 16 | 0 |
| 1992 | 24 | 0 |
| 1993 | 24 | 0 |
| 1994 | 26 | 0 |
| 1995 | 30 | 0 |
| 1996 | 18 | 0 |
| 1997 | 15 | 0 |
| 1998 | 28 | 0 |
| 1999 | 33 | 0 |
| 2000 | 21 | 0 |
| 2001 | 42 | 7 |
| 2002 | 29 | 27 |
| 2003 | 24 | 28 |
| 2004 | 23 | 47 |
| 2005 | 9 | 34 |
| 2006 | 24 | 39 |
| 2007 | 18 | 34 |
| 2008 | 14 | 28 |
| 2009 | 17 | 19 |
| 2010 | 25 | 35 |
| 2011 | 24 | 43 |
| 2012 | 22 | 50 |
| 2013 | 24 | 50 |
| 2014 | 34 | 56 |
| 2015 | 51 | 66 |
| 2016 | 52 | 65 |
| 2017 | 46 | 59 |
| 2018 | 48 | 53 |
| 2019 | 51 | 54 |
| 2020 | 45 | 60 |
| 2021 | 36 | 65 |
| 2022 | 33 | 72 |
| 2023 | 44 | 114 |
| 2024 | 47 | 116 |
| 2025 | 61 | 92 |
| 2026 | 54 | 73 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Hybrid system and method of waste heat utilization-based photovoltaic power generation and seawater desalination6 Oct 2026US 12,752,240 B2Xi' An Jiaotong University
- Pure water production system and pure water production method29 Sep 2026US 12,747,171 B2Organo Corporation
- System and method for capturing carbon dioxide from a humidity adjusted air stream1 Sep 2026US 12,722,118 B2
- Chlorine tolerance of continuous electrodeionization modules1 Sep 2026US 12,722,121 B2Evoqua Water Technologies LLC
- Systems and methods for harnessing thermal gradient energy18 Aug 2026US 12,712,192 B2
- Ion exchange membrane8 Oct 2026US 2026/0307020 A1Khalifa University of Science and Technology
- Systems, Methods, and Apparatuses for Producing and Packaging Medical Fluids8 Oct 2026US 2026/0307835 A1
- Simultaneous production method of lithium hydroxide and sulfuric acid1 Oct 2026US 2026/0296908 A1Posco Holdings Inc.
- Process for the production and separation of 5- hydroxymethylfurfural with quaternary ammonium salts1 Oct 2026US 2026/0297047 A1Novamont S. p. A.
- Methods for carbon capture and metal recovery and related systems24 Sep 2026US 2026/0284595 A1Battelle Energy Alliance, LLC
Most cited
By later US patents
- Electrodeionization apparatus202US 4,632,745 AMillipore Corporation · 1986
- Automatic flushing system for membrane separation machines such as reverse osmosis machines177US 3,992,301 ARaypak, Inc. · 1976
- Composite solid polymer electrolyte membranes158US 6,248,469 B1Foster-Miller, Inc. · 2001
- Introducing and removing ion-exchange and other particulates from an assembled electrodeionization stack155US 5,066,375 AIonics, Incorporated · 1991
- Process and apparatus for treatment of fluids, particularly desalinization of aqueous solutions140US 4,636,296 A1987