C22B 3/1641
With ketones or aldehydes
Official title: {with ketones or aldehydes}
C22B3/1641 (With ketones or aldehydes) appears on 13 US grants and 2 published applications in this corpus.
Search patents in C22B- Granted patents
- 13
- Published applications
- 2
- Assignees
- 4
- Inventors
- 15
- Latest grant
- 23 Mar 2021
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 4 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 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 | 0 | 0 |
| 2019 | 0 | 1 |
| 2020 | 1 | 0 |
| 2021 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Methods of recovering rare earth elements23 Mar 2021US 10,954,585 B2Battelle Energy Alliance, LLC
- Leaching aids and methods of using leaching aids18 Aug 2020US 10,745,778 B2BASF SE
- Fluid extraction12 Oct 1999US 5,965,025 AIdaho Research Foundation, Inc.
- Extraction of metals using supercritical fluid and chelate forming legand24 Mar 1998US 5,730,874 AIdaho Research Foundation, Inc.
- Extracting metals directly from metal oxides25 Feb 1997US 5,606,724 AIdaho Research Foundation, Inc.
Most cited
By later US patents
- Supercritical fluid extraction80US 5,356,538 AIdaho Research Foundation, Inc. · 1994
- Extraction of metals using supercritical fluid and chelate forming legand71US 5,730,874 AIdaho Research Foundation, Inc. · 1998
- Methods and devices for the separation of radioactive rare earth metal isotopes from their alkaline earth metal precursors59US 5,225,173 AIdaho Research Foundation, Inc. · 1993
- Hydroxamic acid crown ethers58US 5,274,129 AIdaho Research Foundation, Inc. · 1993
- Extracting metals directly from metal oxides35US 5,606,724 AIdaho Research Foundation, Inc. · 1997