C02F 2101/303
Complexing agents
Official title: {Complexing agents}
C02F2101/303 (Complexing agents) appears on 38 US grants and 28 published applications in this corpus.
Search patents in C02F- Granted patents
- 38
- Published applications
- 28
- Assignees
- 42
- Inventors
- 102
- Latest grant
- 22 Jul 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 4 | 0 |
| 2001 | 0 | 0 |
| 2002 | 2 | 1 |
| 2003 | 0 | 1 |
| 2004 | 1 | 2 |
| 2005 | 2 | 1 |
| 2006 | 0 | 2 |
| 2007 | 2 | 3 |
| 2008 | 1 | 2 |
| 2009 | 1 | 3 |
| 2010 | 2 | 1 |
| 2011 | 0 | 1 |
| 2012 | 1 | 1 |
| 2013 | 0 | 2 |
| 2014 | 2 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 4 |
| 2020 | 0 | 0 |
| 2021 | 2 | 1 |
| 2022 | 0 | 1 |
| 2023 | 2 | 1 |
| 2024 | 1 | 1 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Method of treatment of water effluent with multilayer filter under electric current22 Jul 2025US 12,365,606 B2
- Method and device for removing organic micropollutants (OMPs) in water17 Sep 2024US 12,091,342 B2Nanjing University
- Method for treating an effluent supersaturated with calcium carbonate in the presence of phosphonate precipitation-inhibiting products12 Sep 2023US 11,753,324 B2Veolia Water Solutions & Technologies Support
- Pretreatment of produced water to facilitate improved metal extraction27 Jun 2023US 11,685,676 B2Katz Water Tech, LLC
- Decomplexation of chelated hardness at high pH27 Jul 2021US 11,072,546 B2ConocoPhillips Company
- Adsorption method for nitrilotriacetic acid (nta) removal from edta containing chelant solutions10 Oct 2024US 2024/0336495 A1Dow Global Technologies LLC
- Electrochemical Oxidation of Amine Complexants in Waste Streams from Electroplating Processes12 Oct 2023US 2023/0322588 A1
- Method and device for removing organic micropollutants (omps) in water29 Sep 2022US 2022/0306503 A1Nanjing University
- Pretreatment of produced water to facilitate improved metal extraction16 Sep 2021US 2021/0284555 A1Katz Water Tech, LLC
- Decomplexation of chelated hardness at high ph3 Oct 2019US 2019/0300401 A1ConocoPhillips Company
Most cited
By later US patents
- Photocatalytic oxidation of organics using a porous titanium dioxide membrane and an efficient oxidant86US 5,779,912 ALynntech, Inc. · 1998
- Photocatalytic oxidation of organics using a porous titanium dioxide membrane and an efficient oxidant57US 6,136,186 ALynntech, Inc. · 2000
- Method of electrolysis employing a doped diamond anode to oxidize solutes in wastewater49US 5,399,247 AEastman Kodak Company · 1995
- Process and installation for the destruction of organic solutes, particularly complexing agents, present in an aqueous solution such as a radioactive effluent34US 5,536,389 ACommissariat A L' Energie Atomique · 1996
- Enhanced photocatalytic oxidation of organics using a porous titanium dioxide membrane26US 6,117,337 ALynntech, Inc. · 2000