C22B 25/02
Obtaining tin: by dry processes
Official title: by dry processes
C22B25/02 (Obtaining tin: by dry processes) appears on 28 US grants and 23 published applications in this corpus.
Search patents in C22B- Granted patents
- 28
- Published applications
- 23
- Assignees
- 22
- Inventors
- 72
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 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 | 0 |
| 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 | 1 |
| 2018 | 0 | 0 |
| 2019 | 0 | 1 |
| 2020 | 1 | 1 |
| 2021 | 0 | 6 |
| 2022 | 0 | 2 |
| 2023 | 4 | 6 |
| 2024 | 4 | 1 |
| 2025 | 6 | 4 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Circular carbon process29 Sep 2026US 12,747,159 B2BASF SE
- Method, apparatus and system for processing a composite waste source26 May 2026US 12,637,737 B2NewSouth Innovations Pty Limited
- System for treating tin smelting intermediate materials and method for treating same9 Dec 2025US 12,492,446 B2Kunming University of Science and Technology
- Device and method for efficiently separating ethyl tin from molten tin12 Aug 2025US 12,385,109 B2Yunnan Tin Co. Ltd. Tin Branch
- System for smelting tin-containing materials and method for smelting same3 Jun 2025US 12,319,980 B2
- Methods for reducing metal oxides with ammonia gas10 Sep 2026US 2026/0265846 A1Trustees of Tufts College
- Tin production powered by geothermal energy17 Jul 2025US 2025/0230523 A1EnhancedGEO Holdings, LLC
- Tin production powered by geothermal energy17 Jul 2025US 2025/0230524 A1EnhancedGEO Holdings, LLC
- Low temperature reduction of metal oxides5 Jun 2025US 2025/0179609 A1Kinaltek Pty. Ltd.
- Method and apparatus for recovering copper, bronze and lead from mixture of copper oxide, tin oxide and lead oxide6 Mar 2025US 2025/0075287 A1Pukyong National University Industry-University Cooperation Foundation
Most cited
By later US patents
- Method of preparing metal carbides, nitrides, and the like23US 4,895,709 ASRI International · 1990
- Method of preparing coatings of metal carbides and the like14US 4,906,493 ASRI International · 1990
- Transition metal carbides and process for making same10US 4,789,534 ASRI International · 1988
- Method of preparing metal carbides and the like and precursors used in such method10US 4,826,666 ASRI International · 1989
- Method for recovering the metal values from materials containing tin and/or zinc5US 4,571,260 ABoliden Aktiebolag · 1986