C22B 19/04
Obtaining zinc by distilling
C22B19/04 (Obtaining zinc by distilling) appears on 93 US grants and 50 published applications in this corpus.
Search patents in C22B- Granted patents
- 93
- Published applications
- 50
- Assignees
- 89
- Inventors
- 204
- Latest grant
- 9 Aug 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 3 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 3 | 0 |
| 1986 | 3 | 0 |
| 1987 | 4 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 8 | 0 |
| 1994 | 6 | 0 |
| 1995 | 4 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 1 | 4 |
| 2004 | 3 | 3 |
| 2005 | 3 | 2 |
| 2006 | 0 | 3 |
| 2007 | 1 | 3 |
| 2008 | 0 | 4 |
| 2009 | 4 | 4 |
| 2010 | 6 | 3 |
| 2011 | 2 | 2 |
| 2012 | 2 | 3 |
| 2013 | 2 | 2 |
| 2014 | 4 | 4 |
| 2015 | 1 | 1 |
| 2016 | 1 | 1 |
| 2017 | 1 | 0 |
| 2018 | 2 | 1 |
| 2019 | 0 | 0 |
| 2020 | 0 | 1 |
| 2021 | 0 | 1 |
| 2022 | 2 | 0 |
| 2023 | 0 | 1 |
| 2024 | 0 | 1 |
| 2025 | 0 | 4 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method for the recovery of zinc9 Aug 2022US 11,408,054 B2Tata Steel Nederland Technology B.V.
- Extraction methods from refractory ores2 Aug 2022US 11,401,578 B2Tcm Research Ltd.
- Plasma induced fuming26 Jun 2018US 10,006,100 B2Val'eas Recycling Solutions AB
- Method of apparatus for condensing metal vapours using a nozzle and a molten collector15 May 2018US 9,970,076 B2Boulle Carbothermic Metals Ltd
- Method for treating a solution containing zinc sulphate11 Apr 2017US 9,617,621 B2Outotec Oyj
- Process for heavy metal removal from iron- and steelmaking flue dust12 Feb 2026US 2026/0043110 A1Tata Steel Ijmuiden B.V.
- Method of manufacturing aluminium deox, aluminium powder, and zinc oxide in a single batch process4 Dec 2025US 2025/0369070 A1BN Industries
- Method for processing zinc concentrates5 Jun 2025US 2025/0179611 A1Glencore Technology Pty Limited
- Treatment of zinc leach residue13 Mar 2025US 2025/0084503 A1Glencore Technology Pty Limited
- Geothermally Powered Pyrometallurgical Zinc Production20 Feb 2025US 2025/0060163 A1EnhancedGEO Holdings, LLC
Most cited
By later US patents
- Method for producing large diameter ingots of nickel base alloys28US 6,416,564 B1ATI Properties, Inc. · 2002
- Furnace dust recovery process24US 4,673,431 ABricmont & Associates, Inc. · 1987
- Method and apparatus for reclaiming metal values from electric arc furnace flue dust and sludge and rendering residual solids recyclable or non-hazardous23US 4,758,268 AZia Technology, Inc. · 1988
- Process for recovering valuable metals from an iron dust containing a higher content of zinc20US 4,612,041 ASumitomo Heavy Industries, Ltd. · 1986
- Method and apparatus for simultaneously separating volatile and non-volatile metals13US 4,606,760 AFritz Enterprises, Inc. · 1986