C02F 1/4693
Electrodialysis
Official title: {electrodialysis}
C02F1/4693 (Electrodialysis) appears on 792 US grants and 1,138 published applications in this corpus.
Search patents in C02F- Granted patents
- 792
- Published applications
- 1,138
- Assignees
- 496
- Inventors
- 2,032
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 3 | 0 |
| 1986 | 3 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 5 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 3 | 0 |
| 1994 | 6 | 0 |
| 1995 | 3 | 0 |
| 1996 | 8 | 0 |
| 1997 | 6 | 0 |
| 1998 | 8 | 0 |
| 1999 | 9 | 0 |
| 2000 | 11 | 0 |
| 2001 | 25 | 2 |
| 2002 | 12 | 7 |
| 2003 | 7 | 17 |
| 2004 | 11 | 23 |
| 2005 | 3 | 25 |
| 2006 | 9 | 28 |
| 2007 | 10 | 23 |
| 2008 | 8 | 30 |
| 2009 | 12 | 20 |
| 2010 | 19 | 26 |
| 2011 | 15 | 43 |
| 2012 | 22 | 43 |
| 2013 | 27 | 45 |
| 2014 | 35 | 62 |
| 2015 | 43 | 65 |
| 2016 | 40 | 60 |
| 2017 | 35 | 38 |
| 2018 | 48 | 50 |
| 2019 | 59 | 57 |
| 2020 | 35 | 48 |
| 2021 | 26 | 53 |
| 2022 | 31 | 74 |
| 2023 | 48 | 92 |
| 2024 | 43 | 77 |
| 2025 | 47 | 72 |
| 2026 | 38 | 58 |
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
- Ion exchange membrane composition and methods for the concentration of perfluoroalkyl substances29 Sep 2026US 12,747,172 B2Evoqua Water Technologies LLC
- Chlorine tolerance of continuous electrodeionization modules1 Sep 2026US 12,722,121 B2Evoqua Water Technologies LLC
- Soft-water system25 Aug 2026US 12,715,795 B2Kyungdong Navien Co., Ltd.
- Systems and methods of flexible electrochemical stripping to recover alkaline ammonia and acidic ammonium from wastewaters18 Aug 2026US 12,709,560 B2The Board of Trustees of the Leland Stanford Junior University
- Systems, Methods, and Apparatuses for Producing and Packaging Medical Fluids8 Oct 2026US 2026/0307835 A1
- Hybrid electrodialysis and electrolysis systems and processes24 Sep 2026US 2026/0285728 A1Pani Clean, Inc.
- Electrodialyzer and Electrodialysis System for CO2 Capture from Ocean Water17 Sep 2026US 2026/0274718 A1California Institute of Technology
- A lithium extraction process through decoupled electrochemical processes10 Sep 2026US 2026/0265091 A1King Abdullah University of Science and Technology
- System for resource recovery and zero liquid discharge treatment of wastewater generated during a precursor manufacturing process for a cathode active material of secondary battery10 Sep 2026US 2026/0265105 A1Bkt Co., Ltd.
Most cited
By later US patents
- Electrodeionization apparatus202US 4,632,745 AMillipore Corporation · 1986
- Maritime power plant system with processes for producing, storing and consuming regenerative energy134US 6,100,600 A2000
- Process for purifying resins utilizing bipolar interface127US 5,211,823 AMillipore Corporation · 1993
- Electrochemically assisted ion exchange123US 5,788,826 APionetics Corporation · 1998
- Water purification process117US 4,808,287 A1989