B03D 2203/04
Non-sulfide ores
B03D2203/04 (Non-sulfide ores) appears on 434 US grants and 221 published applications in this corpus.
Search patents in B03D- Granted patents
- 434
- Published applications
- 221
- Assignees
- 220
- Inventors
- 797
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 6 | 0 |
| 1978 | 11 | 0 |
| 1979 | 18 | 0 |
| 1980 | 22 | 0 |
| 1981 | 25 | 0 |
| 1982 | 20 | 0 |
| 1983 | 13 | 0 |
| 1984 | 23 | 0 |
| 1985 | 20 | 0 |
| 1986 | 10 | 0 |
| 1987 | 9 | 0 |
| 1988 | 18 | 0 |
| 1989 | 15 | 0 |
| 1990 | 9 | 0 |
| 1991 | 11 | 0 |
| 1992 | 9 | 0 |
| 1993 | 7 | 0 |
| 1994 | 6 | 0 |
| 1995 | 9 | 0 |
| 1996 | 8 | 0 |
| 1997 | 3 | 0 |
| 1998 | 4 | 0 |
| 1999 | 6 | 0 |
| 2000 | 6 | 0 |
| 2001 | 0 | 0 |
| 2002 | 3 | 1 |
| 2003 | 1 | 4 |
| 2004 | 4 | 1 |
| 2005 | 2 | 6 |
| 2006 | 3 | 6 |
| 2007 | 4 | 5 |
| 2008 | 0 | 4 |
| 2009 | 2 | 8 |
| 2010 | 2 | 10 |
| 2011 | 3 | 7 |
| 2012 | 8 | 6 |
| 2013 | 11 | 7 |
| 2014 | 8 | 13 |
| 2015 | 10 | 11 |
| 2016 | 9 | 10 |
| 2017 | 11 | 8 |
| 2018 | 4 | 12 |
| 2019 | 8 | 8 |
| 2020 | 11 | 16 |
| 2021 | 5 | 20 |
| 2022 | 5 | 15 |
| 2023 | 9 | 13 |
| 2024 | 7 | 9 |
| 2025 | 6 | 9 |
| 2026 | 6 | 12 |
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
- Ore dressing process for medium-grade and low-grade mixed collophanite19 May 2026US 12,629,697 B2Institute of Multipurpose Utilization of Mineral Resources, CAGS
- Frothers for minerals recovery and methods of making and using same19 May 2026US 12,629,698 B2Syensqo SA
- Method and arrangement for process water treatment17 Feb 2026US 12,551,903 B2Metso Finland Oy
- Frothers for minerals recovery27 Jan 2026US 12,533,681 B2Syensqo SA
- 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
- Method for flotation of argillaceous zinc oxide ore with full-size fractions16 Jul 2026US 2026/0199907 A1
- Flotation method for recovery of copper oxide ore with full-size fractions16 Jul 2026US 2026/0199908 A1Kunming University of Science and Technology
Most cited
By later US patents
- 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
- Process for the froth flotation of calcium phosphate-containing minerals and flotation agents therefor40US 4,358,368 ABerol Kemi AB · 1982
- Promotors for froth floatation of coal37US 4,678,562 ASherex Chemical Company, Inc. · 1987