C01G 13/003
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}
C01G13/003 (Preparation involving a liquid-liquid extraction, an adsorption or an ion-exchange) appears on 22 US grants and 1 published applications in this corpus.
Search patents in C01G- Granted patents
- 22
- Published applications
- 1
- Assignees
- 22
- Inventors
- 48
- Latest grant
- 24 Apr 2018
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 3 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 4 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 1 |
| 2018 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Sulfonated aminomethylated chelate resins24 Apr 2018US 9,950,320 B2LANXESS Deutschland GmbH
- Process for the removal of toxic cyanide and heavy metal species from alkaline solutions4 Jun 1996US 5,522,997 ACognis Corporation
- Removal of mercury from naturally occurring streams containing entrained mineral particles4 Jun 1996US 5,523,067 AUop LLC
- Mercury removal from waste water1 Aug 1995US 5,437,797 AAmerican Home Products Corporation
- Composition for extraction of metal ions and oxanions12 Feb 1991US 4,992,207 ABio-Recovery Systems, Inc.
Most cited
By later US patents
- Adsorbent compositions173US 4,474,896 AUnion Carbide Corporation · 1984
- Removal of heavy metals from waste water61US 4,731,187 AMiyoshi Yushi Kabushiki Kaisha · 1988
- Recovery of heavy metals from aqueous solutions23US 4,619,744 APhillips Petroleum Company · 1986
- Removal of mercury from naturally occurring streams containing entrained mineral particles22US 5,523,067 AUop LLC · 1996
- Separation and recovery of ionic substances by fluorine-containing compound19US 4,486,391 ADainippon Ink and Chemicals, Inc. · 1984