B03D 1/06
Differential
Official title: differential
B03D1/06 (Differential) appears on 85 US grants and 30 published applications in this corpus.
Search patents in B03D- Granted patents
- 85
- Published applications
- 30
- Assignees
- 65
- Inventors
- 180
- Latest grant
- 28 Mar 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 3 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 11 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 4 | 0 |
| 1985 | 4 | 0 |
| 1986 | 1 | 0 |
| 1987 | 4 | 0 |
| 1988 | 1 | 0 |
| 1989 | 4 | 0 |
| 1990 | 1 | 0 |
| 1991 | 6 | 0 |
| 1992 | 4 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 1 |
| 2006 | 1 | 0 |
| 2007 | 0 | 4 |
| 2008 | 0 | 1 |
| 2009 | 0 | 1 |
| 2010 | 1 | 1 |
| 2011 | 1 | 1 |
| 2012 | 2 | 1 |
| 2013 | 0 | 0 |
| 2014 | 2 | 5 |
| 2015 | 3 | 3 |
| 2016 | 1 | 0 |
| 2017 | 1 | 1 |
| 2018 | 2 | 3 |
| 2019 | 2 | 3 |
| 2020 | 3 | 1 |
| 2021 | 3 | 1 |
| 2022 | 0 | 1 |
| 2023 | 1 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Cationic polymer selective depressants and use thereof in mineral ore purification methods28 Mar 2023US 11,612,898 B2Kemira Oyj
- Beneficiation of values from ores with a heap leach process21 Dec 2021US 11,203,044 B2Anglo American Services (UK) Ltd.
- Process for the depression of iron sulphides and other disposable elements in the concentration of mineral by flotation and electrochemical reactor23 Nov 2021US 11,180,825 B2Lain Technologies Ltd
- Separation of copper and molybdenum sulfides from pyrite using a sea water/desalinated water hybrid process13 Jul 2021US 11,060,165 B2Cidra Corporate Services Inc.
- Arsenic removal from lead concentrate by ozone treatment and reverse flotation3 Nov 2020US 10,822,673 B1American Air Liquide, Inc.
- Environmentally-friendly surfactants for mineral beneficiation11 Dec 2025US 2025/0375776 A1Colonial Chemical Inc.
- Method for redistributing a flake material into at least two flake size fractions27 Oct 2022US 2022/0339642 A1
- Coal beneficiation23 Sep 2021US 2021/0291196 A1
- Separation of copper and molybdenum sulfides from pyrite using a sea water/desalinated water hybrid process6 Feb 2020US 2020/0040428 A1Cidra Corporate Services Inc.
- Cationic polymer selective depressants and use thereof in mineral ore purification methods18 Jul 2019US 2019/0217311 A1Kemira Oyj
Most cited
By later US patents
- Sequential flotation of sulfide ores43US 4,460,459 AAnschutz Mining Corporation · 1984
- Depressant for flotation separation of polymetallic sulphidic ores22US 5,049,612 AFalconbridge Limited · 1991
- Selective flotation of cubanite and chalcopyrite from copper/nickel mineralized rock19US 4,283,017 AAmax Inc. · 1981
- Beneficiation of high carbonate phosphate ores19US 4,287,053 ATennessee Valley Authority · 1981
- Depressant for flotation separation of polymetallic sulphidic ores18US 4,877,517 AFalconbridge Limited · 1989