B03D 2203/00
Specified materials treated by the flotation agents
Official title: Specified materials treated by the flotation agents; Specified applications
B03D2203/00 (Specified materials treated by the flotation agents) appears on 901 US grants and 567 published applications in this corpus.
Search patents in B03D- Granted patents
- 901
- Published applications
- 567
- Assignees
- 475
- Inventors
- 1,670
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 16 | 0 |
| 1977 | 15 | 0 |
| 1978 | 18 | 0 |
| 1979 | 23 | 0 |
| 1980 | 31 | 0 |
| 1981 | 36 | 0 |
| 1982 | 30 | 0 |
| 1983 | 25 | 0 |
| 1984 | 35 | 0 |
| 1985 | 48 | 0 |
| 1986 | 25 | 0 |
| 1987 | 29 | 0 |
| 1988 | 29 | 0 |
| 1989 | 34 | 0 |
| 1990 | 22 | 0 |
| 1991 | 23 | 0 |
| 1992 | 22 | 0 |
| 1993 | 10 | 0 |
| 1994 | 6 | 0 |
| 1995 | 11 | 0 |
| 1996 | 11 | 0 |
| 1997 | 6 | 0 |
| 1998 | 6 | 0 |
| 1999 | 9 | 0 |
| 2000 | 10 | 0 |
| 2001 | 1 | 0 |
| 2002 | 6 | 3 |
| 2003 | 3 | 8 |
| 2004 | 7 | 8 |
| 2005 | 4 | 11 |
| 2006 | 9 | 9 |
| 2007 | 5 | 15 |
| 2008 | 3 | 10 |
| 2009 | 6 | 12 |
| 2010 | 5 | 16 |
| 2011 | 6 | 22 |
| 2012 | 12 | 21 |
| 2013 | 16 | 19 |
| 2014 | 21 | 31 |
| 2015 | 21 | 28 |
| 2016 | 25 | 30 |
| 2017 | 25 | 21 |
| 2018 | 19 | 25 |
| 2019 | 19 | 26 |
| 2020 | 26 | 38 |
| 2021 | 21 | 50 |
| 2022 | 23 | 48 |
| 2023 | 26 | 36 |
| 2024 | 24 | 27 |
| 2025 | 23 | 29 |
| 2026 | 15 | 24 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- B03D 2203/02OresIndexing code788
- B03D 2203/006Oil well fluids, oil sands, bitumenIndexing code59
- B03D 2203/008Water purificationIndexing code27
- B03D 2203/003Biotechnological applicationsIndexing code16
- B03D 2203/005Fine and commodity chemicalsIndexing code16
- B03D 2203/001Agricultural products, food, biogas, algaeIndexing code11
Recent patents
- Mining collectors6 Oct 2026US 12,752,286 B2
- Method and apparatus for separating valuable minerals from ore22 Sep 2026US 12,741,286 B2Kaakkois-Suomen Ammattikorkeakoulu Oy
- 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.
- Method for process water treatment14 Jul 2026US 12,679,754 B2Metso Finland Oy
- 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
- A system and a method for collection of micro-plastics13 Aug 2026US 2026/0234886 A1
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
- Process for the extraction of platinum group metals62US 4,685,963 ATexasgulf Minerals and Metals, Inc. · 1987
- Promoters for froth flotation of coal56US 4,589,980 ASherex Chemical Company, Inc. · 1986
- Foaming surfactant compositions50US 4,536,317 AThe Procter & Gamble Company · 1985