B03D 2201/00
Specified effects produced by the flotation agents
B03D2201/00 (Specified effects produced by the flotation agents) appears on 771 US grants and 397 published applications in this corpus.
Search patents in B03D- Granted patents
- 771
- Published applications
- 397
- Assignees
- 354
- Inventors
- 1,359
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 16 | 0 |
| 1977 | 11 | 0 |
| 1978 | 19 | 0 |
| 1979 | 19 | 0 |
| 1980 | 29 | 0 |
| 1981 | 37 | 0 |
| 1982 | 26 | 0 |
| 1983 | 25 | 0 |
| 1984 | 33 | 0 |
| 1985 | 40 | 0 |
| 1986 | 25 | 0 |
| 1987 | 27 | 0 |
| 1988 | 29 | 0 |
| 1989 | 34 | 0 |
| 1990 | 21 | 0 |
| 1991 | 21 | 0 |
| 1992 | 20 | 0 |
| 1993 | 10 | 0 |
| 1994 | 5 | 0 |
| 1995 | 9 | 0 |
| 1996 | 11 | 0 |
| 1997 | 5 | 0 |
| 1998 | 7 | 0 |
| 1999 | 7 | 0 |
| 2000 | 8 | 0 |
| 2001 | 0 | 0 |
| 2002 | 5 | 3 |
| 2003 | 2 | 6 |
| 2004 | 6 | 6 |
| 2005 | 3 | 7 |
| 2006 | 8 | 8 |
| 2007 | 4 | 10 |
| 2008 | 1 | 7 |
| 2009 | 5 | 10 |
| 2010 | 3 | 17 |
| 2011 | 5 | 12 |
| 2012 | 13 | 10 |
| 2013 | 15 | 15 |
| 2014 | 12 | 19 |
| 2015 | 13 | 21 |
| 2016 | 20 | 21 |
| 2017 | 17 | 20 |
| 2018 | 16 | 19 |
| 2019 | 17 | 24 |
| 2020 | 19 | 22 |
| 2021 | 12 | 29 |
| 2022 | 12 | 30 |
| 2023 | 24 | 22 |
| 2024 | 17 | 25 |
| 2025 | 18 | 11 |
| 2026 | 10 | 23 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Mining collectors6 Oct 2026US 12,752,286 B2
- Mining collectors15 Sep 2026US 12,734,529 B1
- Enhanced foam fractionation of oil phase from aqueous/oil mixed phase via increased viscoelasticity8 Sep 2026US 12,729,140 B2Ecolab USA Inc.
- Frothing agent for flotation of ores9 Jun 2026US 12,649,159 B2BASF SE
- Frothers for minerals recovery and methods of making and using same19 May 2026US 12,629,698 B2Syensqo SA
- Mining chemical collector compositions and processes for recovering metal from ore1 Oct 2026US 2026/0295598 A1Chevron Phillips Chemical Company LP
- New frothers for minerals recovery and methods of making and using same17 Sep 2026US 2026/0273546 A1Syensqo SA
- Compositions for lithium beneficiation and methods of use20 Aug 2026US 2026/0241392 A1Ecolab USA Inc.
- A system for generating and using nox gases in an algae growth system13 Aug 2026US 2026/0233160 A1Paradigm Fuels Pty Ltd
- Method For Treating Phosphate Ores Containing Heavy Metals By Reverse Flotation13 Aug 2026US 2026/0234747 A1Ocp SA
Most cited
By later US patents
- Low temperature bitumen recovery process113US 4,946,597 AEsso Resources Canada Limited · 1990
- Ambient froth flotation process for the recovery of bitumen from tar sand87US 4,425,227 AGNC Energy Corporation · 1984
- Promoters for froth flotation of coal56US 4,589,980 ASherex Chemical Company, Inc. · 1986
- Methods of increasing flotation rate43US 6,871,743 B2Mineral and Coal Technologies, Inc. · 2005
- Composition comprising a pulverized purified substance, water and a dispersing agent, and a method for preparing the composition42US 4,217,109 AAB Scaniainventor · 1980