C22B 21/0023
From waste materials
Official title: {from waste materials}
C22B21/0023 (From waste materials) appears on 90 US grants and 148 published applications in this corpus.
Search patents in C22B- Granted patents
- 90
- Published applications
- 148
- Assignees
- 113
- Inventors
- 404
- Latest grant
- 14 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 3 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 3 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 1 |
| 2003 | 1 | 1 |
| 2004 | 0 | 1 |
| 2005 | 0 | 1 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 1 | 2 |
| 2010 | 1 | 0 |
| 2011 | 0 | 1 |
| 2012 | 3 | 1 |
| 2013 | 2 | 1 |
| 2014 | 0 | 4 |
| 2015 | 4 | 7 |
| 2016 | 2 | 10 |
| 2017 | 3 | 5 |
| 2018 | 3 | 2 |
| 2019 | 2 | 4 |
| 2020 | 9 | 4 |
| 2021 | 2 | 9 |
| 2022 | 4 | 6 |
| 2023 | 4 | 23 |
| 2024 | 5 | 25 |
| 2025 | 11 | 20 |
| 2026 | 8 | 18 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method for removing elemental copper from ternary battery waste and application thereof14 Jul 2026US 12,683,208 B2Guangdong Brunp Recycling Technology Co., Ltd.
- Comprehensive utilization method for valuable elements in hydrometallurgical slag of laterite nickel ore23 Jun 2026US 12,662,715 B2Gem Co., Ltd.
- Binder composition for secondary battery21 Apr 2026US 12,605,926 B2Grst Singapore Pte. Ltd.
- Method for efficiently removing fluorine from spent lithium battery21 Apr 2026US 12,606,885 B2Guangdong Brunp Recycling Technology Co., Ltd.
- Hydrometallurgical recycling of lithium-ion battery electrodes7 Apr 2026US 12,597,651 B2Queen's University at Kingston
- Method for recovering metals from waste battery using magnetic field applied biological leaching process10 Sep 2026US 2026/0265858 A1Ak Tree Co., Ltd.
- Comprehensive utilization method for steel making slag13 Aug 2026US 2026/0234753 A1Yuanchu Technology (Beijing) Co., Ltd.
- Methods for regenerating metal oxides13 Aug 2026US 2026/0237772 A1
- Method for resource recovery from a bauxite residue6 Aug 2026US 2026/0225111 A1Ermafa Environmental Technologies GmbH
- Binder composition for secondary battery23 Jul 2026US 2026/0208476 A1Grst Singapore Pte. Ltd.
Most cited
By later US patents
- Process for recovering mineral values from fly ash26US 4,130,627 A1978
- Method of separately recovering metal values of petroleum refining catalyst26US 4,861,565 AThe Hall Chemical Company · 1989
- Method and device for recovery of scrap goods22US 5,139,203 A1992
- Processes for treating fly ashes17US 9,181,603 B2Orbite Technologies Inc. · 2015
- Processes for treating red mud14US 9,023,301 B2Orbite Aluminae Inc. · 2015