B03D 2203/02
Ores
B03D2203/02 (Ores) appears on 788 US grants and 417 published applications in this corpus.
Search patents in B03D- Granted patents
- 788
- Published applications
- 417
- Assignees
- 361
- Inventors
- 1,372
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 15 | 0 |
| 1977 | 15 | 0 |
| 1978 | 18 | 0 |
| 1979 | 23 | 0 |
| 1980 | 31 | 0 |
| 1981 | 34 | 0 |
| 1982 | 30 | 0 |
| 1983 | 20 | 0 |
| 1984 | 31 | 0 |
| 1985 | 48 | 0 |
| 1986 | 25 | 0 |
| 1987 | 28 | 0 |
| 1988 | 29 | 0 |
| 1989 | 33 | 0 |
| 1990 | 19 | 0 |
| 1991 | 23 | 0 |
| 1992 | 22 | 0 |
| 1993 | 9 | 0 |
| 1994 | 6 | 0 |
| 1995 | 10 | 0 |
| 1996 | 11 | 0 |
| 1997 | 6 | 0 |
| 1998 | 6 | 0 |
| 1999 | 9 | 0 |
| 2000 | 9 | 0 |
| 2001 | 0 | 0 |
| 2002 | 6 | 2 |
| 2003 | 2 | 6 |
| 2004 | 7 | 6 |
| 2005 | 3 | 10 |
| 2006 | 9 | 8 |
| 2007 | 4 | 10 |
| 2008 | 3 | 8 |
| 2009 | 5 | 9 |
| 2010 | 4 | 14 |
| 2011 | 5 | 14 |
| 2012 | 10 | 8 |
| 2013 | 16 | 14 |
| 2014 | 12 | 22 |
| 2015 | 13 | 20 |
| 2016 | 22 | 25 |
| 2017 | 17 | 17 |
| 2018 | 15 | 21 |
| 2019 | 15 | 24 |
| 2020 | 23 | 29 |
| 2021 | 14 | 36 |
| 2022 | 15 | 33 |
| 2023 | 17 | 22 |
| 2024 | 17 | 21 |
| 2025 | 12 | 18 |
| 2026 | 12 | 20 |
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
- 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
- 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
- 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.
- Method for flotation of argillaceous zinc oxide ore with full-size fractions16 Jul 2026US 2026/0199907 A1
Most cited
By later US patents
- 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
- Sequential flotation of sulfide ores43US 4,460,459 AAnschutz Mining Corporation · 1984
- Methods of increasing flotation rate43US 6,871,743 B2Mineral and Coal Technologies, Inc. · 2005