C22B 61/00
Obtaining metals not elsewhere provided for in this subclass
Official title: Obtaining metals not elsewhere provided for in this subclass (iron C21)
C22B61/00 (Obtaining metals not elsewhere provided for in this subclass) appears on 137 US grants and 120 published applications in this corpus.
Search patents in C22B- Granted patents
- 137
- Published applications
- 120
- Assignees
- 133
- Inventors
- 408
- Latest grant
- 5 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 2 | 0 |
| 1978 | 3 | 0 |
| 1979 | 3 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 4 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 3 | 0 |
| 1993 | 3 | 0 |
| 1994 | 2 | 0 |
| 1995 | 4 | 0 |
| 1996 | 1 | 0 |
| 1997 | 4 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 1 |
| 2002 | 4 | 1 |
| 2003 | 0 | 1 |
| 2004 | 1 | 1 |
| 2005 | 0 | 3 |
| 2006 | 0 | 3 |
| 2007 | 3 | 6 |
| 2008 | 0 | 2 |
| 2009 | 2 | 5 |
| 2010 | 7 | 11 |
| 2011 | 2 | 9 |
| 2012 | 8 | 6 |
| 2013 | 10 | 11 |
| 2014 | 3 | 4 |
| 2015 | 9 | 8 |
| 2016 | 9 | 11 |
| 2017 | 6 | 5 |
| 2018 | 7 | 1 |
| 2019 | 3 | 2 |
| 2020 | 2 | 4 |
| 2021 | 1 | 5 |
| 2022 | 5 | 5 |
| 2023 | 3 | 2 |
| 2024 | 0 | 6 |
| 2025 | 5 | 5 |
| 2026 | 2 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- High pressure caustic leach methods and processes for recovery of scandium and rare-earth oxides5 May 2026US 12,617,693 B2Scandium Canada Ltd.
- Method of preparing scandium metal7 Apr 2026US 12,595,531 B2Industrial Technology Research Institute
- Carbon capture using electrochemically-produced acid and base2 Dec 2025US 12,486,585 B2Electrasteel, Inc.
- Rhenium remediation in the preparation of molybdenum-9926 Aug 2025US 12,398,446 B2Output Enablers LLC
- Systems and methods for separating yttrium and strontium29 Jul 2025US 12,371,338 B2Battelle Memorial Institute
- Rhenium Remediation in the Preparation of Molybdenum-9924 Sep 2026US 2026/0286468 A1Output Enablers LLC, d/b/a Calchemist
- Method for the Selective Recovery of Bismuth From Solid Impurity Streams Generated During the Primary Production of Copper8 Jan 2026US 2026/0009102 A1Consejo Superior De Investigaciones Cientificas (Csic)
- Electrolyzer and membrane electrode assembly disassembly for component separation and recycling20 Nov 2025US 2025/0354235 A1Plug Power Inc.
- Method for processing rough copper concentrates from waste tailings16 Oct 2025US 2025/0320579 A1
- Methods for recovering a target metal from iron or steel slag using at least one of a carbothermic reduction process and a pyro-hydrometallurgical process2 Oct 2025US 2025/0305086 A1Tenova Goodfellow Inc.
Most cited
By later US patents
- Process for plasma synthesis of rhenium nano and micro powders, and for coatings and near net shape deposits thereof and apparatus therefor73US 7,494,527 B2Tekna Plasma Systems Inc. · 2009
- High producing rate of nano particles by laser liquid interaction52US 5,770,126 AThe Penn State Research Foundation · 1998
- Process for the production of ultrafine particles44US 6,203,768 B1Advanced Nano Technologies Pty Ltd · 2001
- Processes for removing, separating and concentrating lead, thallium, alkali metals, alkaline earth metals from concentrated matrices using macrocyclic polyether cryptand ligands bonded to inorganic supports32US 5,393,892 AIBC Advanced Technologies, Inc. · 1995
- Catalyst manufacturing method31US 9,278,338 B2Johnson Matthey PLC · 2016