B01D 2321/22
Electrical effects
B01D2321/22 (Electrical effects) appears on 79 US grants and 105 published applications in this corpus.
Search patents in B01D- Granted patents
- 79
- Published applications
- 105
- Assignees
- 80
- Inventors
- 258
- Latest grant
- 7 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 1 |
| 2002 | 0 | 3 |
| 2003 | 1 | 1 |
| 2004 | 2 | 6 |
| 2005 | 1 | 3 |
| 2006 | 1 | 0 |
| 2007 | 2 | 1 |
| 2008 | 1 | 4 |
| 2009 | 1 | 5 |
| 2010 | 2 | 3 |
| 2011 | 2 | 5 |
| 2012 | 4 | 1 |
| 2013 | 2 | 9 |
| 2014 | 0 | 8 |
| 2015 | 4 | 10 |
| 2016 | 7 | 8 |
| 2017 | 9 | 2 |
| 2018 | 2 | 7 |
| 2019 | 2 | 3 |
| 2020 | 6 | 2 |
| 2021 | 1 | 4 |
| 2022 | 1 | 4 |
| 2023 | 6 | 3 |
| 2024 | 0 | 4 |
| 2025 | 2 | 5 |
| 2026 | 1 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Forward osmosis filtration cell, and methods of filtering water with a forward osmosis filtration cell7 Apr 2026US 12,594,526 B2University of Vermont and State Agricultural College
- Electrochemical membrane degassing apparatus2 Dec 2025US 12,485,369 B2Korea University Research and Business Foundation
- Simplified architecture for desalination via electrodialysis26 Aug 2025US 12,397,263 B2Massachusetts Institute of Technology
- System and method for a filter system19 Dec 2023US 11,845,020 B2Pentair Water Pool and Spa, Inc.
- Electrically conductive membrane assembly and related systems and methods19 Dec 2023US 11,845,041 B2Research Triangle Institute
- Ultra-low power membrane-assisted lithium extraction system with passive foulant removal24 Sep 2026US 2026/0284598 A1Lyten, Inc.
- Regenerating method of electrodeionization system and method for purifying hydrogen peroxide by using same23 Jul 2026US 2026/0208116 A1
- Electrodialysis process with active foulant removal sequence12 Feb 2026US 2026/0042065 A1Evoqua Water Technologies LLC
- Methods and Systems for Ion Separation and Recovery20 Nov 2025US 2025/0353761 A1Triangle Environmental Health Initiative LLC
- Electric field assisted nanofiltration systems24 Jul 2025US 2025/0235827 A1Purdue Research Foundation
Most cited
By later US patents
- Reversible electrolytic system for softening and dealkalizing water93US 4,671,863 A1987
- Water treating device60US 6,071,404 A2000
- Electrodialysis apparatus and process59US 4,608,140 AIonics, Incorporated · 1986
- System to optimize the transfer of gas through membranes57US 5,271,743 A1993
- Method and apparatus for improving the life of an electrode52US 4,707,240 AIonics, Incorporated · 1987