C22B 15/0073
Containing nitrogen
Official title: {containing nitrogen}
C22B15/0073 (Containing nitrogen) appears on 38 US grants and 37 published applications in this corpus.
Search patents in C22B- Granted patents
- 38
- Published applications
- 37
- Assignees
- 37
- Inventors
- 115
- Latest grant
- 7 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 2 |
| 2005 | 0 | 2 |
| 2006 | 0 | 1 |
| 2007 | 2 | 1 |
| 2008 | 0 | 5 |
| 2009 | 3 | 2 |
| 2010 | 1 | 1 |
| 2011 | 2 | 0 |
| 2012 | 1 | 1 |
| 2013 | 1 | 1 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 1 | 4 |
| 2017 | 1 | 1 |
| 2018 | 1 | 1 |
| 2019 | 1 | 1 |
| 2020 | 1 | 1 |
| 2021 | 1 | 1 |
| 2022 | 1 | 0 |
| 2023 | 0 | 3 |
| 2024 | 1 | 2 |
| 2025 | 1 | 3 |
| 2026 | 1 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Alkaline oxidation methods and systems for recovery of metals from ores7 Apr 2026US 12,595,529 B2Alderley Gold Corp.
- Oxidative heap leaching of base metals23 Dec 2025US 12,503,746 B2Bhp Chile Inc
- Alkaline oxidation methods and systems for recovery of metals from ores28 May 2024US 11,993,826 B2Hycroft Mining Holding Corporation
- Metal recovery method using adsorbent18 Oct 2022US 11,473,169 B2Danam-Ene Co. Ltd.
- Low acidity, low solids pressure oxidative leaching of sulphidic feeds14 Sep 2021US 11,118,244 B2Sherritt International Corporation
- Process for leaching copper produced from secondary sources30 Jul 2026US 2026/0218331 A1Glencore Technology Pty Limited
- Alkaline Oxidation Methods and Systems for Recovery of Metals from Ores2 Jul 2026US 2026/0185181 A1Alderley Gold Corp.
- Method of converting copper cyanide to copper oxide and system thereof11 Jun 2026US 2026/0159409 A1Cyanco Corporation
- In Situ Leaching of Copper From Porphyry Copper Ore Bodies Through Stimulated Natural Fracture Networks25 Dec 2025US 2025/0389179 A1
- Oxidative leaching methods8 May 2025US 2025/0146102 A1BASF SE
Most cited
By later US patents
- Oxidation process for releasing metal values in which nitric acid is regenerated in situ28US 4,834,793 AHydrochem Developments Ltd. · 1989
- Method of producing cuprous sulfate and bisulfate solutions20US 3,961,028 AAnumin Pty. Ltd. · 1976
- Treatment of metal bearing mineral material14US 4,084,961 ASunshine Mining Company · 1978
- Hydrometallurical recovery of copper and zinc from complex sulfide ores13US 5,484,579 AR & O Mining Processing Ltd. · 1996
- Sustainable process for reclaiming precious metals and base metals from e-waste13US 9,238,850 B2Advanced Technology Materials, Inc. · 2016