B03D 2201/002
Coagulants and flocculants
Official title: Coagulants and Flocculants
B03D2201/002 (Coagulants and flocculants) appears on 54 US grants and 32 published applications in this corpus.
Search patents in B03D- Granted patents
- 54
- Published applications
- 32
- Assignees
- 45
- Inventors
- 142
- Latest grant
- 21 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 4 | 0 |
| 1982 | 1 | 0 |
| 1983 | 4 | 0 |
| 1984 | 4 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 1 |
| 2012 | 1 | 0 |
| 2013 | 0 | 0 |
| 2014 | 1 | 0 |
| 2015 | 0 | 2 |
| 2016 | 0 | 1 |
| 2017 | 2 | 3 |
| 2018 | 1 | 0 |
| 2019 | 1 | 3 |
| 2020 | 1 | 2 |
| 2021 | 1 | 4 |
| 2022 | 3 | 6 |
| 2023 | 6 | 2 |
| 2024 | 3 | 3 |
| 2025 | 1 | 1 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Methods and compositions for processing sulfide ores21 Apr 2026US 12,605,719 B2Ecolab USA Inc.
- Si removal from aqueous streams of minerals processing plants20 Jan 2026US 12,528,718 B2Metso Finland Oy
- Point-of-care electroflotation of dispersed, low tolerance pathogens13 May 2025US 12,296,349 B2University of Hawaii
- Process of disposal in piles of tailings stemming from the iron ore processing method10 Dec 2024US 12,162,025 B2Vale S.A.
- Processes for the removal and recovery of cadmium from wet-process phosphoric acid22 Oct 2024US 12,123,072 B2K-Technologies, Inc.
- A system for generating and using nox gases in an algae growth system13 Aug 2026US 2026/0233160 A1Paradigm Fuels Pty Ltd
- The control of continuous water treatment14 Aug 2025US 2025/0256998 A1The Water & Carbon Group Pty, Ltd.
- System for clarifying process water in oil and gas operations7 Nov 2024US 2024/0367073 A1Redhawk Coil Tubing
- Improved flotation and solid-liquid separation of tailings20 Jun 2024US 2024/0198359 A1Extrakt Process Solutions, LLC
- Processes for the removal and recovery of cadmium from wet-process phosphoric acid16 May 2024US 2024/0158888 A1K-Technologies, Inc.
Most cited
By later US patents
- Ambient froth flotation process for the recovery of bitumen from tar sand87US 4,425,227 AGNC Energy Corporation · 1984
- Treatment of tailings pond sludge39US 4,399,039 ASuncor, Inc. · 1983
- Process for settling red mud in the digestion of bauxite28US 3,975,496 AAllied Colloids Limited · 1976
- Decarbonation of tailings sludge to improve settling28US 4,414,117 ASuncor, Inc. · 1983
- Method for treating oil sands extraction plant tailings28US 4,437,998 ASuncor, Inc. · 1984