C02F 2101/18
Cyanides
C02F2101/18 (Cyanides) appears on 232 US grants and 113 published applications in this corpus.
Search patents in C02F- Granted patents
- 232
- Published applications
- 113
- Assignees
- 186
- Inventors
- 543
- Latest grant
- 26 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 13 | 0 |
| 1977 | 8 | 0 |
| 1978 | 5 | 0 |
| 1979 | 8 | 0 |
| 1980 | 9 | 0 |
| 1981 | 2 | 0 |
| 1982 | 6 | 0 |
| 1983 | 5 | 0 |
| 1984 | 4 | 0 |
| 1985 | 8 | 0 |
| 1986 | 6 | 0 |
| 1987 | 6 | 0 |
| 1988 | 4 | 0 |
| 1989 | 4 | 0 |
| 1990 | 4 | 0 |
| 1991 | 6 | 0 |
| 1992 | 7 | 0 |
| 1993 | 13 | 0 |
| 1994 | 10 | 0 |
| 1995 | 8 | 0 |
| 1996 | 6 | 0 |
| 1997 | 2 | 0 |
| 1998 | 5 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 4 | 0 |
| 2002 | 4 | 2 |
| 2003 | 5 | 4 |
| 2004 | 1 | 4 |
| 2005 | 1 | 4 |
| 2006 | 1 | 1 |
| 2007 | 3 | 6 |
| 2008 | 3 | 2 |
| 2009 | 0 | 0 |
| 2010 | 1 | 6 |
| 2011 | 1 | 9 |
| 2012 | 6 | 7 |
| 2013 | 3 | 5 |
| 2014 | 6 | 6 |
| 2015 | 2 | 7 |
| 2016 | 5 | 6 |
| 2017 | 4 | 4 |
| 2018 | 1 | 7 |
| 2019 | 4 | 2 |
| 2020 | 2 | 6 |
| 2021 | 4 | 9 |
| 2022 | 5 | 6 |
| 2023 | 5 | 4 |
| 2024 | 5 | 3 |
| 2025 | 3 | 1 |
| 2026 | 2 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Ozone treatment of mining effluents26 May 2026US 12,637,376 B2Asdr Canada Inc.
- Process for removing cyanide from a cyanide-bearing aqueous fluid21 Apr 2026US 12,606,462 B2Commonwealth Scientific and Industrial Research Organisation
- Methods and compositions for remediating cyanuric acid in aqueous liquids16 Dec 2025US 12,497,315 B2Danisco US Inc.
- Method for treating electroplating wastewater1 Apr 2025US 12,264,089 B1Nanchang Hangkong University
- Treatment method of wastewater containing ferricyanide complex and oxalate7 Jan 2025US 12,187,630 B2Guangdong Brunp Recycling Technology Co., Ltd.
- Coagulant compositions and methods of use6 Aug 2026US 2026/0225932 A1Locus Solutions Ipco, LLC
- Extraction module and methods for extraction of a target species18 Jun 2026US 2026/0166493 A1Kunin Technologies, Inc.
- Regenerable smart materials for selective removal of pollutants from water and waste water13 Feb 2025US 2025/0051189 A1Exposome Pvt. Ltd.
- Compositions and Methods for Flocculation19 Dec 2024US 2024/0417290 A1Locus Solutions Ipco, LLC
- Treatment method of wastewater containing ferricyanide complex and oxalate15 Aug 2024US 2024/0270613 A1Guangdong Brunp Recycling Technology Co., Ltd.
Most cited
By later US patents
- Method and system for purifying liquid88US 3,985,648 AAlmag Pollution Control Corporation · 1976
- Electrolytic water purification process78US 5,531,865 A1996
- Thermal plasma reactor and wastewater treatment method66US 6,187,206 B1Alcan International Limited · 2001
- Phosphoric acid/lime hazardous waste detoxification treatment process60US 4,671,882 ADeere & Company · 1987
- Process for purification of aqueous solutions containing hydrogen sulfide, hydrogen cyanide, and ammonia52US 5,236,557 AHoechst Aktiengesellschaft · 1993