C22B 3/1625
With amines
Official title: {with amines (amino acids C22B3/165)}
C22B3/1625 (With amines) appears on 25 US grants and 26 published applications in this corpus.
Search patents in C22B- Granted patents
- 25
- Published applications
- 26
- Assignees
- 20
- Inventors
- 56
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 1 |
| 2009 | 0 | 1 |
| 2010 | 1 | 1 |
| 2011 | 0 | 1 |
| 2012 | 1 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 2 |
| 2015 | 0 | 0 |
| 2016 | 2 | 1 |
| 2017 | 0 | 2 |
| 2018 | 1 | 3 |
| 2019 | 0 | 2 |
| 2020 | 3 | 1 |
| 2021 | 0 | 2 |
| 2022 | 3 | 3 |
| 2023 | 2 | 1 |
| 2024 | 1 | 0 |
| 2025 | 0 | 1 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Carbonation and selective leaching for the recovery of metals11 Aug 2026US 12,703,894 B2Phoenix Tailings, Inc.
- Process for recovering precious metals from molecular sieve bodies10 Sep 2024US 12,084,744 B2
- Methods for simultaneous leaching and extraction of precious metals14 Nov 2023US 11,814,698 B2Excir Works Corp.
- Methods for recovering copper, cobalt, indium and nickel with amine containing lixiviant31 Jan 2023US 11,566,304 B2Lixivia, Inc.
- Methods for simultaneous leaching and extraction of precious metals30 Aug 2022US 11,427,886 B2Excir Works Corp.
- Process for the extraction of a by-product metal from a mineral concentrate8 Oct 2026US 2026/0308710 A1
- Carbonation and selective leaching for the recovery of metals14 Aug 2025US 2025/0257423 A1Phoenix Tailings, Inc.
- Process For Recovering Precious Metals From Molecular Sieve Bodies11 May 2023US 2023/0141211 A1
- Methods for selective leaching and extraction of precious metals in organic solvents17 Nov 2022US 2022/0364201 A1Excir Works Corp.
- Methods for simultaneous leaching and extraction of precious metals27 Oct 2022US 2022/0340998 A1Excir Works Corp.
Most cited
By later US patents
- Recovery of rhenium15US 7,763,096 B2SD Lizenzverwertungsgesellschaft mbH & Co. KG · 2010
- Quaternary ammonium trihalide and method for dissolution of metal with liquid containing the compound9US 5,264,191 AAgency of Industrial Science and Technology · 1993
- Stabilized acidic aqueous solutions containing hydrogen peroxide and metallic ions and processes8US 4,636,368 AAtochem · 1987
- Process for removing metal contaminants from soils8US 5,599,372 AEarth Decontaminators, Inc. · 1997
- Separative treatment of anode slime6US 4,283,224 ASouthwire Company · 1981