C02F 1/4604
For desalination of seawater or brackish water
Official title: {for desalination of seawater or brackish water}
C02F1/4604 (For desalination of seawater or brackish water) appears on 216 US grants and 222 published applications in this corpus.
Search patents in C02F- Granted patents
- 216
- Published applications
- 222
- Assignees
- 163
- Inventors
- 616
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 4 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 6 | 0 |
| 1986 | 2 | 0 |
| 1987 | 4 | 0 |
| 1988 | 5 | 0 |
| 1989 | 1 | 0 |
| 1990 | 5 | 0 |
| 1991 | 4 | 0 |
| 1992 | 3 | 0 |
| 1993 | 2 | 0 |
| 1994 | 7 | 0 |
| 1995 | 2 | 0 |
| 1996 | 5 | 0 |
| 1997 | 2 | 0 |
| 1998 | 3 | 0 |
| 1999 | 4 | 0 |
| 2000 | 4 | 0 |
| 2001 | 12 | 3 |
| 2002 | 8 | 5 |
| 2003 | 5 | 8 |
| 2004 | 6 | 10 |
| 2005 | 1 | 2 |
| 2006 | 3 | 3 |
| 2007 | 3 | 5 |
| 2008 | 1 | 6 |
| 2009 | 2 | 4 |
| 2010 | 5 | 7 |
| 2011 | 1 | 13 |
| 2012 | 7 | 5 |
| 2013 | 1 | 4 |
| 2014 | 6 | 11 |
| 2015 | 2 | 10 |
| 2016 | 5 | 23 |
| 2017 | 12 | 12 |
| 2018 | 13 | 13 |
| 2019 | 9 | 11 |
| 2020 | 10 | 11 |
| 2021 | 5 | 11 |
| 2022 | 4 | 8 |
| 2023 | 5 | 17 |
| 2024 | 8 | 6 |
| 2025 | 7 | 7 |
| 2026 | 5 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- High recovery electrodialysis method16 Jun 2026US 12,655,046 B2Evoqua Water Technologies LLC
- Forward osmosis driven by electrolysis12 May 2026US 12,623,188 B2President and Fellows of Harvard College
- System and method for modifying pH in an aqueous environment21 Apr 2026US 12,606,469 B2Genesee Valley Innovations, LLC
- High-flow, intact biomaterial-derived electrode for use in capacitive desalination17 Mar 2026US 12,577,134 B2Carnegie Mellon University
- Ratchet-based ion pumping membrane systems20 Jan 2026US 12,528,052 B2The Regents of the University of California
- Integrated Ocean Alkalinity Enhancement And Seawater Desalination8 Oct 2026US 2026/0308037 A1Ebb Carbon, Inc.
- Method for desalinating liquid20 Aug 2026US 2026/0242257 A1Ming Chi University of Technology
- Method of water purification28 May 2026US 2026/0145971 A1King Fahd University of Petroleum and Minerals
- Ion removal device30 Apr 2026US 2026/0116789 A1Mitsubishi Electric Corporation
- Methods for deionization of an aqueous fluid5 Feb 2026US 2026/0035273 A1Voltea B.V.
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 demineralization of aqueous solutions146US 4,687,561 A1987
- Process and apparatus for treatment of fluids, particularly desalinization of aqueous solutions140US 4,636,296 A1987
- Electrochemically assisted ion exchange123US 5,788,826 APionetics Corporation · 1998