B03D 3/06
Flocculation
B03D3/06 (Flocculation) appears on 181 US grants and 109 published applications in this corpus.
Search patents in B03D- Granted patents
- 181
- Published applications
- 109
- Assignees
- 129
- Inventors
- 395
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 3 | 0 |
| 1981 | 18 | 0 |
| 1982 | 12 | 0 |
| 1983 | 11 | 0 |
| 1984 | 8 | 0 |
| 1985 | 7 | 0 |
| 1986 | 3 | 0 |
| 1987 | 5 | 0 |
| 1988 | 4 | 0 |
| 1989 | 3 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 4 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 5 | 0 |
| 1998 | 0 | 0 |
| 1999 | 6 | 0 |
| 2000 | 6 | 0 |
| 2001 | 2 | 1 |
| 2002 | 3 | 0 |
| 2003 | 2 | 3 |
| 2004 | 2 | 1 |
| 2005 | 0 | 2 |
| 2006 | 2 | 5 |
| 2007 | 2 | 3 |
| 2008 | 1 | 4 |
| 2009 | 0 | 2 |
| 2010 | 4 | 1 |
| 2011 | 4 | 2 |
| 2012 | 2 | 3 |
| 2013 | 0 | 1 |
| 2014 | 3 | 4 |
| 2015 | 0 | 5 |
| 2016 | 1 | 4 |
| 2017 | 5 | 3 |
| 2018 | 4 | 5 |
| 2019 | 3 | 7 |
| 2020 | 2 | 6 |
| 2021 | 5 | 12 |
| 2022 | 7 | 5 |
| 2023 | 6 | 16 |
| 2024 | 7 | 5 |
| 2025 | 3 | 6 |
| 2026 | 5 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Device and method for treating green liquor11 Aug 2026US 12,703,943 B2Valmet Corporation
- Process for the removal of heavy metals from a phosphoric acid containing composition using a flocculating agent10 Feb 2026US 12,545,582 B2Yara International Asa
- Process for the removal of heavy metals from a phosphoric acid containing composition10 Feb 2026US 12,545,583 B2Yara International Asa
- Process for the removal of heavy metals from a phosphoric acid containing composition using an ionic polymeric surfactant and use of said surfactant in the precipitation of heavy metals in a phosphoric acid containing composition10 Feb 2026US 12,545,584 B2Yara International Asa
- Treated floc curtains27 Jan 2026US 12,533,613 B2Clearflow Group Inc.
- Method for treating a suspension of solid particles in water using a polymer in a crystalline form of 2-acrylamido-2-methylpropanesulphonic acid sodium salt27 Aug 2026US 2026/0250162 A1Snf Group
- Method for resource recovery from a bauxite residue6 Aug 2026US 2026/0225111 A1Ermafa Environmental Technologies GmbH
- Method for producing iodine component-containing aqueous solution using inorganic flocculant with selective removal property of fluoride ion and phosphate ion9 Jul 2026US 2026/0193113 A1Godo Shigen Co., Ltd.
- Method of refining metal and method of fabricating positive electrode active material using the same28 Aug 2025US 2025/0270673 A1Samsung SDI.Co., Ltd.
- Disinfection and in situ flocculation-solidification process for pathogenic medical waste disposal24 Jul 2025US 2025/0235577 A1Council of Scientific and Industrial Research An Indian Registered Body Incorporated Under the Regn.
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
- Process for removal of sulfur and ash from coal67US 4,272,250 AAtlantic Richfield Company · 1981
- Method of treating an aqueous suspension of kaolin56US 6,615,987 B1Imerys Pigments, Inc. · 2003
- Method for breaking petroleum emulsions and the like using thin film spreading agents comprising a polyether polyol50US 4,342,657 AMagna Corporation · 1982
- Apparatus and method for clarification of water using combined flotation and filtration processes50US 4,377,485 ALenox Institute for Research, Inc. · 1983