C01G 37/003
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}
C01G37/003 (Preparation involving a liquid-liquid extraction, an adsorption or an ion-exchange) appears on 30 US grants and 4 published applications in this corpus.
Search patents in C01G- Granted patents
- 30
- Published applications
- 4
- Assignees
- 27
- Inventors
- 62
- Latest grant
- 5 Jul 2016
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 3 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 3 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 3 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 1 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 0 | 0 |
| 2016 | 1 | 0 |
| 2017 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Method for reducing chromium5 Jul 2016US 9,382,140 B2Metafix Inc.
- Method of extracting hexavalent chromium17 Apr 2012US 8,157,982 B2
- Detector of near-infrared light19 Oct 2004US 6,806,714 B2President of Tokyo University of Mercantile Marine
- Supported liquid membrane process for chromium removal and recovery9 Jan 2001US 6,171,563 B2Commodore Separation Technologies, Inc.
- Process for producing pure ammonium metallates6 Apr 1999US 5,891,407 AH. C. Starck GmbH
- Metal contamination preventing method and apparatus and substrate processing method and apparatus using the same7 Sep 2017US 2017/0252782 A1Tokyo Electron Limited
- Method for reducing chromium4 Dec 2014US 2014/0353258 A1Metafix Inc.
- Method of Extracting Hexavalent Chromium17 Apr 2008US 2008/0087553 A1Hideo Yoshida
- Detector of near-infrared light22 Jul 2004US 2004/0140805 A1President of Tokyo University of Mercantile Marine
Most cited
By later US patents
- Removal of heavy metals from waste water61US 4,731,187 AMiyoshi Yushi Kabushiki Kaisha · 1988
- Removal of metals from solutions37US 4,747,954 AThe Dow Chemical Company · 1988
- Method and apparatus for continuous ion exchange30US 4,563,337 AGeneral Electric Company · 1986
- Method for continuous separation of dissolved materials15US 4,664,808 AGeneral Electric Company · 1987
- Composition for extraction of metal ions and oxanions15US 4,992,207 ABio-Recovery Systems, Inc. · 1991