C01G 33/003
Preparation involving a liquid-liquid extraction, an adsorption or an ion-exchange
Official title: {Preparation involving a liquid-liquid extraction, an adsorption or an ion-exchange}
C01G33/003 (Preparation involving a liquid-liquid extraction, an adsorption or an ion-exchange) appears on 13 US grants and 8 published applications in this corpus.
Search patents in C01G- Granted patents
- 13
- Published applications
- 8
- Assignees
- 19
- Inventors
- 45
- Latest grant
- 27 Sep 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 2 |
| 2006 | 0 | 0 |
| 2007 | 2 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 0 |
| 2015 | 1 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 1 |
| 2019 | 0 | 1 |
| 2020 | 1 | 1 |
| 2021 | 0 | 0 |
| 2022 | 1 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 1 |
| 2025 | 0 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Nanometer niobium carbide/carbon nanotube reinforced diamond composite and a preparation method thereof27 Sep 2022US 11,453,597 B2Jilin University
- Proton-conductive complex oxide and fuel cell using same as electrolyte20 Oct 2020US 10,807,878 B2National Institute of Advanced Industrial Science and Technology
- Tributyl phosphate-nitrate solvent extraction process for producing high purity nuclear grade rare earth metal oxides3 Nov 2015US 9,174,855 B2The Secretary, Department of Atomic Energy, Government of India
- Purification method for producing high purity niobium compound and/or tantalum compound8 May 2007US 7,214,362 B2Stella Chemifa Corporation
- Purification method for producing high purity niobium compound and/or tantalum compound13 Feb 2007US 7,175,823 B2Stella Chemifa Corporation
- Process for extracting tantalum and niobium from an aqueous acidic solution8 Jan 2026US 2026/0009106 A1Centre National De La Recherche Scientifique
- Lithium niobate solution and method for producing same27 Jun 2024US 2024/0208839 A1Mitsui Mining & Smelting Co., Ltd.
- Nanometer Niobium Carbide/Carbon Nanotube Reinforced Diamond Composite And A Preparation Method Thereof19 Nov 2020US 2020/0361777 A1Jilin University
- Adsorbent and compound recovery method using same14 Feb 2019US 2019/0046954 A1KYOCERA Corporation
- Proton-conductive complex oxide and fuel cell using same as electrolyte28 Jun 2018US 2018/0179080 A1National Institute of Advanced Industrial Science and Technology
Most cited
By later US patents
- Process for the recovery and separation of tantalum and niobium15US 5,209,910 AHermann C. Starck GmbH & Co. KG · 1993
- Recovery of metal values from process residues14US 5,437,848 ACabot Corporation · 1995
- Treatment of raw materials containing titanium13US 4,082,832 ASolex Research Corporation · 1978
- Recovery of metal values and hydrofluoric acid from tantalum and columbium waste sludge12US 5,023,059 A1991
- Process for dissolving tantalum/columbium materials containing alkali metal impurities9US 4,663,130 ACabot Corporation · 1987