C22B 3/326
Ramified chain carboxylic acids or derivatives thereof
Official title: {Ramified chain carboxylic acids or derivatives thereof, e.g. "versatic" acids}
C22B3/326 (Ramified chain carboxylic acids or derivatives thereof) appears on 16 US grants and 30 published applications in this corpus.
Search patents in C22B- Granted patents
- 16
- Published applications
- 30
- Assignees
- 25
- Inventors
- 86
- Latest grant
- 28 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 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 | 1 |
| 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 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 1 |
| 2021 | 0 | 1 |
| 2022 | 0 | 4 |
| 2023 | 1 | 10 |
| 2024 | 3 | 4 |
| 2025 | 3 | 3 |
| 2026 | 4 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method for recycling nickel, cobalt and manganese from feed liquid containing nickel, cobalt and manganese28 Apr 2026US 12,612,681 B2Suzhou Botree Cycling Sci & Tech Co., Ltd
- Method for recovering active metal of lithium secondary battery10 Feb 2026US 12,545,974 B2SK Innovation Co., Ltd.
- Method for producing mixed metal solution and method for producing mixed metal salt27 Jan 2026US 12,534,776 B2Jx Metals Circular Solutions Co., Ltd.
- Method for producing mixed metal salt13 Jan 2026US 12,522,514 B2Jx Metals Circular Solutions Co., Ltd.
- Extraction system, extraction method for separating magnesium and extracting lithium from magnesium-containing brine with secondary amide-type solvent as well as applications thereof15 Jul 2025US 12,358,804 B2Xiangtan University
- Process for the extraction of manganese3 Sep 2026US 2026/0258526 A1Element 25 Limited
- Short-flow nickel-cobalt-manganese co-extraction process for laterite nickel ore hydrometallurgy20 Aug 2026US 2026/0242894 A1Gem Co., Ltd.
- Method for the optimisation of feed for downstream processing16 Jul 2026US 2026/0201502 A1iGo, Inc.
- Method for preparing high-purity mixed nickel and cobalt sulphate7 May 2026US 2026/0125279 A1iGo, Inc.
- Method for recovering active metal of lithium secondary battery7 May 2026US 2026/0125776 A1SK Innovation Co., Ltd.
Most cited
By later US patents
- Recovery of neodymium/didymium values from bastnaesite ores14US 5,338,520 ARhone-Poulenc Chimie · 1994
- Hydrometallurgical method of extraction of copper from sulphide-containing material5US 4,552,632 AElkem a/s · 1985
- Extraction of Cu(II), Fe(III), Ni(II), Co(II), Cd(II), Zn(II), Ca(II) and Mg(II) metal values using 2-hydroxy iminoacetic acids4US 4,108,958 AShell Oil Company · 1978
- Use of citric acid partial esters for the extraction of iron3US 4,820,417 AHenkel Kommanditgesellschaft auf Aktien · 1989