B03D 1/001
Flotation agents
Official title: Flotation agents (conditioners B03B1/00)
B03D1/001 (Flotation agents) appears on 915 US grants and 438 published applications in this corpus.
Search patents in B03D- Granted patents
- 915
- Published applications
- 438
- Assignees
- 397
- Inventors
- 1,518
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 20 | 0 |
| 1977 | 17 | 0 |
| 1978 | 26 | 0 |
| 1979 | 25 | 0 |
| 1980 | 36 | 0 |
| 1981 | 43 | 0 |
| 1982 | 35 | 0 |
| 1983 | 30 | 0 |
| 1984 | 39 | 0 |
| 1985 | 50 | 0 |
| 1986 | 32 | 0 |
| 1987 | 30 | 0 |
| 1988 | 31 | 0 |
| 1989 | 35 | 0 |
| 1990 | 23 | 0 |
| 1991 | 25 | 0 |
| 1992 | 22 | 0 |
| 1993 | 12 | 0 |
| 1994 | 6 | 0 |
| 1995 | 11 | 0 |
| 1996 | 12 | 0 |
| 1997 | 6 | 0 |
| 1998 | 11 | 0 |
| 1999 | 9 | 0 |
| 2000 | 10 | 0 |
| 2001 | 2 | 0 |
| 2002 | 6 | 3 |
| 2003 | 2 | 7 |
| 2004 | 7 | 6 |
| 2005 | 4 | 10 |
| 2006 | 9 | 9 |
| 2007 | 5 | 10 |
| 2008 | 3 | 10 |
| 2009 | 5 | 17 |
| 2010 | 4 | 17 |
| 2011 | 5 | 16 |
| 2012 | 15 | 11 |
| 2013 | 17 | 16 |
| 2014 | 15 | 29 |
| 2015 | 14 | 23 |
| 2016 | 24 | 20 |
| 2017 | 22 | 25 |
| 2018 | 22 | 21 |
| 2019 | 19 | 24 |
| 2020 | 20 | 26 |
| 2021 | 18 | 30 |
| 2022 | 10 | 28 |
| 2023 | 26 | 22 |
| 2024 | 16 | 23 |
| 2025 | 19 | 13 |
| 2026 | 10 | 22 |
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
- Ore dressing process for medium-grade and low-grade mixed collophanite19 May 2026US 12,629,697 B2Institute of Multipurpose Utilization of Mineral Resources, CAGS
- 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.
- Method For Treating Phosphate Ores Containing Heavy Metals By Reverse Flotation13 Aug 2026US 2026/0234747 A1Ocp SA
- Sulfur compositions for froth flotation of ores30 Jul 2026US 2026/0216736 A1Arkema Inc.
Most cited
By later US patents
- Foaming surfactant compositions383US 4,565,647 AThe Procter & Gamble Company · 1986
- 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
- Light-duty liquid detergent and shampoo compositions72US 4,663,069 AThe Procter & Gamble Company · 1987
- Promoters for froth flotation of coal56US 4,589,980 ASherex Chemical Company, Inc. · 1986