B03D 3/00
Differential sedimentation
B03D3/00 (Differential sedimentation) appears on 297 US grants and 207 published applications in this corpus.
Search patents in B03D- Granted patents
- 297
- Published applications
- 207
- Assignees
- 221
- Inventors
- 665
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 5 | 0 |
| 1979 | 2 | 0 |
| 1980 | 8 | 0 |
| 1981 | 18 | 0 |
| 1982 | 13 | 0 |
| 1983 | 12 | 0 |
| 1984 | 10 | 0 |
| 1985 | 9 | 0 |
| 1986 | 4 | 0 |
| 1987 | 6 | 0 |
| 1988 | 7 | 0 |
| 1989 | 4 | 0 |
| 1990 | 2 | 0 |
| 1991 | 5 | 0 |
| 1992 | 2 | 0 |
| 1993 | 3 | 0 |
| 1994 | 6 | 0 |
| 1995 | 4 | 0 |
| 1996 | 2 | 0 |
| 1997 | 6 | 0 |
| 1998 | 0 | 0 |
| 1999 | 6 | 0 |
| 2000 | 9 | 0 |
| 2001 | 5 | 1 |
| 2002 | 4 | 1 |
| 2003 | 5 | 4 |
| 2004 | 3 | 1 |
| 2005 | 0 | 6 |
| 2006 | 2 | 6 |
| 2007 | 3 | 4 |
| 2008 | 1 | 4 |
| 2009 | 0 | 4 |
| 2010 | 6 | 8 |
| 2011 | 4 | 8 |
| 2012 | 6 | 5 |
| 2013 | 3 | 5 |
| 2014 | 4 | 10 |
| 2015 | 8 | 15 |
| 2016 | 4 | 9 |
| 2017 | 9 | 18 |
| 2018 | 13 | 9 |
| 2019 | 13 | 13 |
| 2020 | 8 | 10 |
| 2021 | 8 | 17 |
| 2022 | 11 | 11 |
| 2023 | 9 | 19 |
| 2024 | 9 | 6 |
| 2025 | 6 | 7 |
| 2026 | 7 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Device and method for treating green liquor11 Aug 2026US 12,703,943 B2Valmet Corporation
- Accelerated settlement of flocs after electrocoagulation/electrochemical process using ballasted flocculation7 Apr 2026US 12,595,194 B2Evoqua Water Technologies LLC
- Method for removing silicon powder in coolant for monocrystalline silicon slicing with diamond wire10 Mar 2026US 12,569,784 B2Tcl Zhonghuan Renewable Energy Technology Co., Ltd.
- 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
- 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
- Composition comprising charged polysaccharide and coagulant, and method of using the same23 Jul 2026US 2026/0209092 A1Paragon Solution Inc.
- 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.
- Accelerated settlement of flocs after electrocoagulation/electrochemical process using ballasted flocculation2 Jul 2026US 2026/0184610 A1Evoqua Water Technologies LLC
Most cited
By later US patents
- Cryo-sedimentation process96US 6,016,660 ASaint-Gobain Industrial Ceramics, Inc. · 2000
- Ambient froth flotation process for the recovery of bitumen from tar sand87US 4,425,227 AGNC Energy Corporation · 1984
- Method for using ligands in particle separation84US 6,153,113 ACobe Laboratories, Inc. · 2000
- 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