C22B 13/045
Recovery from waste materials
Official title: {Recovery from waste materials}
C22B13/045 (Recovery from waste materials) appears on 117 US grants and 104 published applications in this corpus.
Search patents in C22B- Granted patents
- 117
- Published applications
- 104
- Assignees
- 108
- Inventors
- 272
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 5 | 0 |
| 1996 | 5 | 0 |
| 1997 | 4 | 0 |
| 1998 | 7 | 0 |
| 1999 | 4 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 1 |
| 2003 | 4 | 1 |
| 2004 | 3 | 4 |
| 2005 | 4 | 1 |
| 2006 | 0 | 1 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 2 | 2 |
| 2010 | 0 | 6 |
| 2011 | 1 | 1 |
| 2012 | 3 | 3 |
| 2013 | 2 | 3 |
| 2014 | 1 | 4 |
| 2015 | 2 | 6 |
| 2016 | 2 | 8 |
| 2017 | 8 | 10 |
| 2018 | 4 | 6 |
| 2019 | 7 | 3 |
| 2020 | 6 | 9 |
| 2021 | 6 | 7 |
| 2022 | 4 | 3 |
| 2023 | 4 | 9 |
| 2024 | 4 | 9 |
| 2025 | 3 | 5 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Integrated recovery of metals from complex substrates22 Sep 2026US 12,742,224 B2Yava International Inc.
- Process with low environmental impact and reduced energy consumption for the recovery of lead from the electrode pastes of end-of-life batteries21 Jul 2026US 12,689,074 B2Metallon Clean Extractions B.V.
- Molten lead scrap submergence apparatus11 Nov 2025US 12,467,118 B2Pyrotek, Inc.
- Method for recovering valuable material from perovskite solar cell1 Jul 2025US 12,344,916 B2National Tsing Hua University
- Methods for purifying and recycling lead from spent lead-acid batteries15 Apr 2025US 12,278,352 B2CPS Technology Holdings LLC
- Process for heavy metal removal from iron- and steelmaking flue dust12 Feb 2026US 2026/0043110 A1Tata Steel Ijmuiden B.V.
- Energy efficient salt-free recovery of metal from dross23 Oct 2025US 2025/0327150 A1Pyrogenesis Canada Inc.
- Electrolytic extraction of elemental metal from metal compounds25 Sep 2025US 2025/0297395 A1Verdeen Chemicals Inc.
- Methods for purifying and recycling lead from spent lead-acid batteries10 Jul 2025US 2025/0226473 A1CPS Technology Holdings LLC
- Compositions and processes for the extraction of metals using non-aqueous solvents1 May 2025US 2025/0137090 A1Argo Natural Resources Limited
Most cited
By later US patents
- Process for recovering lead oxides from exhausted batteries33US 7,507,496 B1Kinsbursky Brothers Inc · 2009
- Hydrometallurgical process for an overall recovery of the components of exhausted lead-acid batteries31US 4,769,116 AEngitec Impianti S.p.A. · 1988
- Hydrometallurgical method for recovering metal materials from spent lead-acid storage batteries29US 4,460,442 AHydrometal S.p.A. · 1984
- Method of recovering lead values from battery sludge28US 4,229,271 ARSR Limited · 1980
- Recovery of high purity lead oxide from lead acid battery paste26US 8,323,595 B1Toxco, Inc. · 2012