B01D 61/48
Having one or more compartments filled with ion-exchange material
Official title: having one or more compartments filled with ion-exchange material {, e.g. electrodeionisation}
B01D61/48 (Having one or more compartments filled with ion-exchange material) appears on 373 US grants and 407 published applications in this corpus.
Search patents in B01D- Granted patents
- 373
- Published applications
- 407
- Assignees
- 187
- Inventors
- 674
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 5 | 0 |
| 1991 | 3 | 0 |
| 1992 | 3 | 0 |
| 1993 | 2 | 0 |
| 1994 | 5 | 0 |
| 1995 | 4 | 0 |
| 1996 | 6 | 0 |
| 1997 | 7 | 0 |
| 1998 | 6 | 0 |
| 1999 | 9 | 0 |
| 2000 | 10 | 0 |
| 2001 | 18 | 2 |
| 2002 | 17 | 12 |
| 2003 | 11 | 13 |
| 2004 | 10 | 27 |
| 2005 | 3 | 17 |
| 2006 | 11 | 27 |
| 2007 | 9 | 12 |
| 2008 | 11 | 16 |
| 2009 | 12 | 7 |
| 2010 | 15 | 15 |
| 2011 | 9 | 14 |
| 2012 | 13 | 18 |
| 2013 | 8 | 20 |
| 2014 | 21 | 15 |
| 2015 | 19 | 21 |
| 2016 | 15 | 20 |
| 2017 | 10 | 17 |
| 2018 | 12 | 19 |
| 2019 | 20 | 12 |
| 2020 | 10 | 11 |
| 2021 | 7 | 12 |
| 2022 | 5 | 18 |
| 2023 | 7 | 21 |
| 2024 | 11 | 17 |
| 2025 | 7 | 13 |
| 2026 | 11 | 11 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Chlorine tolerance of continuous electrodeionization modules1 Sep 2026US 12,722,121 B2Evoqua Water Technologies LLC
- High recovery electrodialysis method16 Jun 2026US 12,655,046 B2Evoqua Water Technologies LLC
- Paper-based micro-concentrator, biological sample detection device and biological sample detection method26 May 2026US 12,636,616 B2National Chung Cheng University
- Water purification apparatus, system and method for controlling at least one fluid property19 May 2026US 12,629,636 B2Vantive Health GmbH
- Direct production of lithium hydroxide from brine by electrochemical flow cells12 May 2026US 12,623,932 B2The Regents of the University of Michigan
- Regenerating method of electrodeionization system and method for purifying hydrogen peroxide by using same23 Jul 2026US 2026/0208116 A1
- Method for purifying hydrogen peroxide23 Jul 2026US 2026/0209040 A1
- Control method for pure water production system23 Jul 2026US 2026/0209077 A1Kurita Water Industries Ltd.
- Carbon dioxide capture and biogas upgrading system using microbubble generator-linked electrodeionization device2 Jul 2026US 2026/0183716 A1Weni Co.,Ltd
- Electrochemical technology to purify electrocatalytic co2 and co reduction product streams from supporting electrolytes and other ionic species18 Jun 2026US 2026/0166489 A1Renewco2 Inc.
Most cited
By later US patents
- Electrodeionization apparatus202US 4,632,745 AMillipore Corporation · 1986
- 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
- Method and apparatus for high efficiency reverse osmosis operation122US 5,925,255 A1999
- Electrolytic process and apparatus for the controlled oxidation of inorganic and organic species in aqueous solutions111US 5,419,816 AHalox Technologies, Inc. · 1995