B03D 2201/007
Modifying reagents for adjusting ph or conductivity
Official title: Modifying reagents for adjusting pH or conductivity
B03D2201/007 (Modifying reagents for adjusting ph or conductivity) appears on 89 US grants and 70 published applications in this corpus.
Search patents in B03D- Granted patents
- 89
- Published applications
- 70
- Assignees
- 93
- Inventors
- 286
- Latest grant
- 4 Mar 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 6 | 0 |
| 1982 | 3 | 0 |
| 1983 | 6 | 0 |
| 1984 | 2 | 0 |
| 1985 | 3 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 4 | 0 |
| 1989 | 4 | 0 |
| 1990 | 1 | 0 |
| 1991 | 4 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 4 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 2 | 1 |
| 2003 | 0 | 1 |
| 2004 | 0 | 0 |
| 2005 | 1 | 0 |
| 2006 | 0 | 1 |
| 2007 | 1 | 0 |
| 2008 | 0 | 2 |
| 2009 | 1 | 1 |
| 2010 | 0 | 2 |
| 2011 | 0 | 3 |
| 2012 | 0 | 1 |
| 2013 | 1 | 3 |
| 2014 | 2 | 4 |
| 2015 | 3 | 5 |
| 2016 | 2 | 5 |
| 2017 | 4 | 5 |
| 2018 | 3 | 6 |
| 2019 | 4 | 4 |
| 2020 | 5 | 2 |
| 2021 | 3 | 8 |
| 2022 | 0 | 3 |
| 2023 | 5 | 0 |
| 2024 | 1 | 3 |
| 2025 | 1 | 3 |
| 2026 | 0 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Iron chelators as activators in alkaline flotation circuits4 Mar 2025US 12,240,000 B2BASF SE
- Method and system for preparing xanthate by slurry method6 Aug 2024US 12,054,452 B2Central South University
- Method for recovering gold in cyanide tailing by hierarchical ramified flotation31 Oct 2023US 11,801,517 B2Chongyi Zhangyuan Tungsten Co., Ltd
- System and method of concentrating niobium ore29 Aug 2023US 11,738,353 B2Taseko Mines Limited
- Mineral processing method11 Jul 2023US 11,697,862 B2Kyushu University, National University Corporation
- A system for generating and using nox gases in an algae growth system13 Aug 2026US 2026/0233160 A1Paradigm Fuels Pty Ltd
- Flotation method for recovery of copper oxide ore with full-size fractions16 Jul 2026US 2026/0199908 A1Kunming University of Science and Technology
- Flotation reagent and application thereof, and method for synchronously recovering fluorite and rare earth from fluorite-type rare earth ores9 Jul 2026US 2026/0192308 A1IMUMR, Chinese Academy of Geological Sciences
- Combined depressant for sphalerite and its application28 May 2026US 2026/0145180 A1Kunming University of Science and Technology
- Collector composition for beneficiating carbonaceous phosphate ores19 Mar 2026US 2026/0077364 A1ArrMaz Products Inc.
Most cited
By later US patents
- Promoters for froth flotation of coal56US 4,589,980 ASherex Chemical Company, Inc. · 1986
- Froth promotor for flotation of coal36US 4,308,133 AThe Dow Chemical Company · 1981
- Process for separating high viscosity bitumen from tar sands34US 4,410,417 AUniversity of Utah Research Foundation · 1983
- Flotation separation of valuable minerals27US 6,427,843 B1BOC Gases Australia Limited · 2002
- Activator-frother composition23US 5,389,274 AHecu S.A. · 1995