C22B 13/06
Refining
C22B13/06 (Refining) appears on 73 US grants and 45 published applications in this corpus.
Search patents in C22B- Granted patents
- 73
- Published applications
- 45
- Assignees
- 61
- Inventors
- 169
- Latest grant
- 4 Jun 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 8 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 6 | 0 |
| 1984 | 4 | 0 |
| 1985 | 4 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 3 | 0 |
| 1993 | 3 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 1 | 2 |
| 2004 | 1 | 2 |
| 2005 | 1 | 0 |
| 2006 | 0 | 3 |
| 2007 | 0 | 3 |
| 2008 | 1 | 2 |
| 2009 | 1 | 1 |
| 2010 | 1 | 8 |
| 2011 | 4 | 2 |
| 2012 | 5 | 4 |
| 2013 | 2 | 0 |
| 2014 | 0 | 2 |
| 2015 | 0 | 1 |
| 2016 | 2 | 3 |
| 2017 | 4 | 0 |
| 2018 | 1 | 1 |
| 2019 | 0 | 1 |
| 2020 | 0 | 2 |
| 2021 | 2 | 2 |
| 2022 | 2 | 1 |
| 2023 | 0 | 1 |
| 2024 | 1 | 1 |
| 2025 | 0 | 1 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Metal and tin alloy having low alpha-ray emission, and method for producing same4 Jun 2024US 12,000,020 B2Mitsubishi Materials Corporation
- Method for the treatment of iron-containing sludge6 Dec 2022US 11,519,053 B2ArcelorMittal
- Agent for selective antimony and arsenic removal and tin retaining for refining secondary crude lead, and use method thereof16 Aug 2022US 11,414,724 B2Jiangsu New Chunxing Resource Recycling Co. Ltd
- Method and apparatus for the production of lead 212 for medical use15 Jun 2021US 11,037,690 B2Orano Med
- Method for comprehensively processing noble lead20 Apr 2021US 10,982,299 B2Kunming Dingbang Technology Co., Ltd.
- Method for fire refining of complex crude lead21 May 2026US 2026/0139341 A1Kunming University of Science and Technology
- Electrolytic extraction of elemental metal from metal compounds25 Sep 2025US 2025/0297395 A1Verdeen Chemicals Inc.
- Automated method and device for production of lead 212 for use in targeted alpha-particle therapy3 Oct 2024US 2024/0327948 A1RadioMedix Inc.
- Metal and tin alloy having low alpha-ray emission, and method for producing same23 Mar 2023US 2023/0085708 A1Mitsubishi Materials Corporation
- Improved method for producing high purity lead10 Mar 2022US 2022/0074022 A1Metallo Belgium
Most cited
By later US patents
- Metal sulphide extraction36US 4,378,275 ASaudi-Sudanese Red Sea Joint Commission · 1983
- Process for the recovery of lead and silver chlorides14US 4,556,422 AHazen Research, Inc. · 1985
- Continuous sulphur drossing apparatus12US 4,073,481 AMonash University · 1978
- Recovery of copper and zinc from complex chloride solutions12US 4,362,607 ACanadian Patents and Development Limited · 1982
- Process for the treatment of electric arc furnace dust12US 5,336,297 ATerra Gaia Environmental Group Inc. · 1994