C22B 19/00
Obtaining zinc or zinc oxide
C22B19/00 (Obtaining zinc or zinc oxide) appears on 610 US grants and 372 published applications in this corpus.
Search patents in C22B- Granted patents
- 610
- Published applications
- 372
- Assignees
- 440
- Inventors
- 1,339
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 22 | 0 |
| 1977 | 16 | 0 |
| 1978 | 15 | 0 |
| 1979 | 12 | 0 |
| 1980 | 10 | 0 |
| 1981 | 13 | 0 |
| 1982 | 11 | 0 |
| 1983 | 8 | 0 |
| 1984 | 14 | 0 |
| 1985 | 13 | 0 |
| 1986 | 17 | 0 |
| 1987 | 14 | 0 |
| 1988 | 8 | 0 |
| 1989 | 6 | 0 |
| 1990 | 4 | 0 |
| 1991 | 6 | 0 |
| 1992 | 9 | 0 |
| 1993 | 19 | 0 |
| 1994 | 12 | 0 |
| 1995 | 18 | 0 |
| 1996 | 12 | 0 |
| 1997 | 10 | 0 |
| 1998 | 12 | 0 |
| 1999 | 18 | 0 |
| 2000 | 14 | 0 |
| 2001 | 10 | 3 |
| 2002 | 21 | 9 |
| 2003 | 10 | 18 |
| 2004 | 17 | 20 |
| 2005 | 12 | 11 |
| 2006 | 5 | 11 |
| 2007 | 4 | 14 |
| 2008 | 4 | 17 |
| 2009 | 10 | 14 |
| 2010 | 16 | 19 |
| 2011 | 17 | 13 |
| 2012 | 12 | 13 |
| 2013 | 20 | 16 |
| 2014 | 7 | 21 |
| 2015 | 16 | 12 |
| 2016 | 16 | 19 |
| 2017 | 9 | 8 |
| 2018 | 13 | 5 |
| 2019 | 11 | 10 |
| 2020 | 10 | 16 |
| 2021 | 7 | 16 |
| 2022 | 11 | 4 |
| 2023 | 7 | 22 |
| 2024 | 11 | 22 |
| 2025 | 7 | 25 |
| 2026 | 14 | 14 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Integrated recovery of metals from complex substrates22 Sep 2026US 12,742,224 B2Yava International Inc.
- Multi-component flux11 Aug 2026US 12,703,050 B2Pyrotek, Inc.
- Carbonation and selective leaching for the recovery of metals11 Aug 2026US 12,703,894 B2Phoenix Tailings, Inc.
- Method for recovering valuable materials from batteries7 Jul 2026US 12,676,351 B2University of Kentucky Research Foundation
- Method, apparatus and system for processing a composite waste source26 May 2026US 12,637,737 B2NewSouth Innovations Pty Limited
- Methods for reducing metal oxides with ammonia gas10 Sep 2026US 2026/0265846 A1Trustees of Tufts College
- Method for the Separation of Zinc and Iron from Electric Arc Furnace Baghouse Dust6 Aug 2026US 2026/0225092 A1American Renewable Metals LLC
- Zinc recovery method and zinc ferrite decomposition method6 Aug 2026US 2026/0226582 A1Kinotech Corporation
- A process for transition metal oxide reduction30 Jul 2026US 2026/0218323 A1Helios Project Ltd.
- Method of preparing zinc-containing material, method of preparing electrogalvanizing bath, and method of producing electrogalvanized steel sheet30 Jul 2026US 2026/0218332 A1Jfe Steel Corporation
Most cited
By later US patents
- Process for precipitating compounds from zinc metal baths by means of a hollow rotary body that can be driven about an axis and is dipped into the molten zinc89US 6,364,930 B1Andritz Patentverwaltungsgellschaft mbH · 2002
- Process and device for precipitating compounds from zinc metal baths by means of a hollow rotary body that can be driven about an axis and is dipped into the molten zinc86US 6,656,415 B2Andritz Patentverwaltungsgesellschaft M.B.H. · 2003
- Device and method for obtaining non-ferrous metals86US 8,480,950 B2Pyrotek, Inc. · 2013
- Chloride assisted hydrometallurgical copper extraction52US 5,431,788 ACominco Engineering Services Ltd. · 1995
- Selective recovery of manganese and zinc from geothermal brines51US 8,454,816 B1Simbol Inc. · 2013