C02F 1/4695
Electrodeionisation
Official title: {electrodeionisation}
C02F1/4695 (Electrodeionisation) appears on 433 US grants and 583 published applications in this corpus.
Search patents in C02F- Granted patents
- 433
- Published applications
- 583
- Assignees
- 235
- Inventors
- 969
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 3 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 5 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 3 | 0 |
| 1995 | 1 | 0 |
| 1996 | 4 | 0 |
| 1997 | 5 | 0 |
| 1998 | 3 | 0 |
| 1999 | 6 | 0 |
| 2000 | 6 | 0 |
| 2001 | 16 | 2 |
| 2002 | 11 | 6 |
| 2003 | 7 | 14 |
| 2004 | 10 | 19 |
| 2005 | 3 | 17 |
| 2006 | 7 | 22 |
| 2007 | 8 | 13 |
| 2008 | 5 | 21 |
| 2009 | 10 | 12 |
| 2010 | 15 | 14 |
| 2011 | 10 | 18 |
| 2012 | 12 | 28 |
| 2013 | 11 | 32 |
| 2014 | 22 | 30 |
| 2015 | 29 | 40 |
| 2016 | 21 | 35 |
| 2017 | 24 | 19 |
| 2018 | 26 | 22 |
| 2019 | 33 | 20 |
| 2020 | 15 | 29 |
| 2021 | 10 | 21 |
| 2022 | 12 | 28 |
| 2023 | 17 | 40 |
| 2024 | 19 | 30 |
| 2025 | 16 | 27 |
| 2026 | 19 | 24 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- 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.
- High recovery electrodialysis method16 Jun 2026US 12,655,046 B2Evoqua Water Technologies LLC
- Water purifier having composite filter26 May 2026US 12,637,377 B2Coway Co., Ltd.
- Water purification apparatus, system and method for controlling at least one fluid property19 May 2026US 12,629,636 B2Vantive Health GmbH
- Systems, Methods, and Apparatuses for Producing and Packaging Medical Fluids8 Oct 2026US 2026/0307835 A1
- Content-filling system and sterilizing method27 Aug 2026US 2026/0250116 A1Dai Nippon Printing Co.Ltd.
- Water treatment system27 Aug 2026US 2026/0250157 A1Evoqua Water Technologies LLC
- Water treatment apparatus and control method of water treatment apparatus20 Aug 2026US 2026/0242258 A1Samsung Electronics Co., Ltd.
- Electrochemcial treatment of saline wastewater with captured co2 to produce saline free water13 Aug 2026US 2026/0234034 A1Saudi Arabian Oil Company
Most cited
By later US patents
- Electrodeionization apparatus202US 4,632,745 AMillipore Corporation · 1986
- Process for purifying resins utilizing bipolar interface127US 5,211,823 AMillipore Corporation · 1993
- Electrolytic process and apparatus for the controlled oxidation of inorganic and organic species in aqueous solutions111US 5,419,816 AHalox Technologies, Inc. · 1995
- Electrodeionization apparatus109US 5,308,466 AIP Holding Company · 1994
- Electrodeionization apparatus106US 5,316,637 AIP Holding Company · 1994