C22B 15/0093
By gases
Official title: {by gases, e.g. hydrogen or hydrogen sulfide}
C22B15/0093 (By gases) appears on 76 US grants and 36 published applications in this corpus.
Search patents in C22B- Granted patents
- 76
- Published applications
- 36
- Assignees
- 53
- Inventors
- 177
- Latest grant
- 19 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 18 | 0 |
| 1977 | 11 | 0 |
| 1978 | 5 | 0 |
| 1979 | 3 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 3 | 0 |
| 1983 | 3 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 1 |
| 2002 | 1 | 0 |
| 2003 | 1 | 1 |
| 2004 | 0 | 2 |
| 2005 | 1 | 2 |
| 2006 | 0 | 3 |
| 2007 | 1 | 3 |
| 2008 | 1 | 1 |
| 2009 | 4 | 4 |
| 2010 | 2 | 4 |
| 2011 | 3 | 1 |
| 2012 | 1 | 0 |
| 2013 | 1 | 0 |
| 2014 | 3 | 2 |
| 2015 | 1 | 0 |
| 2016 | 0 | 1 |
| 2017 | 1 | 0 |
| 2018 | 1 | 1 |
| 2019 | 0 | 0 |
| 2020 | 1 | 3 |
| 2021 | 0 | 2 |
| 2022 | 0 | 0 |
| 2023 | 1 | 1 |
| 2024 | 3 | 1 |
| 2025 | 0 | 2 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Real-time monitoring system and method for copper-arsenic sulfidation separation in copper electrolyte purification process19 May 2026US 12,630,899 B2Tongji University
- Method for extracting valuable metal from low-matte nickel converter slag25 Jun 2024US 12,018,346 B2Guangdong Brunp Recycling Technology Co., Ltd.
- Method for separating copper from nickel and cobalt16 Apr 2024US 11,959,151 B2Sumitomo Metal Mining Co., Ltd.
- Alloy powder and method for producing same2 Jan 2024US 11,859,264 B2Sumitomo Metal Mining Co., Ltd.
- Method for separating copper, and nickel and cobalt8 Aug 2023US 11,718,894 B2Sumitomo Metal Mining Co., Ltd.
- Real-time monitoring system and method for copper-arsenic sulfidation separation in copper electrolyte purification process26 Feb 2026US 2026/0055482 A1Tongji University
- Oxidative and reductive leaching methods2 Oct 2025US 2025/0305089 A1BASF SE
- Electrode material leaching method and method for separating cobalt and nickel3 Jul 2025US 2025/0215527 A1Mitsubishi Materials Corporation
- Method for extracting valuable metal from low-matte nickel converter slag1 Feb 2024US 2024/0035116 A1Guangdong Brunp Recycling Technology Co., Ltd.
- Method for treating alloy25 May 2023US 2023/0160035 A1Sumitomo Metal Mining Co., Ltd.
Most cited
By later US patents
- Process for the recovery of hydrogen-reduced metals, ions and the like at porous hydrophobic catalytic barriers51US 4,331,520 APrototech Company · 1982
- Method of recovering hydrogen-reduced metals, ions and the like at porous catalytic barriers and apparatus therefor41US 4,422,911 APrototech Company · 1983
- Hydrometallurgical process for recovering copper and other metal values from metal sulphides32US 4,097,271 ACominco Ltd. · 1978
- Method of producing cuprous sulfate and bisulfate solutions20US 3,961,028 AAnumin Pty. Ltd. · 1976
- Zinc recovery from acidic aqueous streams19US 3,981,966 AE. I. Du Pont de Nemours and Company · 1976