C22B 34/1204
Preliminary treatment of ores or scrap to eliminate non- titanium constituents
Official title: {preliminary treatment of ores or scrap to eliminate non- titanium constituents, e.g. iron, without attacking the titanium constituent}
C22B34/1204 (Preliminary treatment of ores or scrap to eliminate non- titanium constituents) appears on 133 US grants and 86 published applications in this corpus.
Search patents in C22B- Granted patents
- 133
- Published applications
- 86
- Assignees
- 99
- Inventors
- 354
- Latest grant
- 7 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 3 | 0 |
| 1978 | 6 | 0 |
| 1979 | 7 | 0 |
| 1980 | 5 | 0 |
| 1981 | 6 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 3 | 0 |
| 1986 | 1 | 0 |
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| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 3 | 0 |
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| 1995 | 5 | 0 |
| 1996 | 5 | 0 |
| 1997 | 3 | 0 |
| 1998 | 3 | 0 |
| 1999 | 4 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 1 |
| 2002 | 2 | 3 |
| 2003 | 2 | 4 |
| 2004 | 4 | 2 |
| 2005 | 0 | 1 |
| 2006 | 1 | 3 |
| 2007 | 1 | 6 |
| 2008 | 1 | 4 |
| 2009 | 4 | 7 |
| 2010 | 5 | 5 |
| 2011 | 5 | 1 |
| 2012 | 1 | 4 |
| 2013 | 3 | 5 |
| 2014 | 1 | 1 |
| 2015 | 2 | 1 |
| 2016 | 2 | 5 |
| 2017 | 1 | 2 |
| 2018 | 3 | 4 |
| 2019 | 2 | 1 |
| 2020 | 3 | 3 |
| 2021 | 3 | 5 |
| 2022 | 2 | 4 |
| 2023 | 1 | 6 |
| 2024 | 3 | 2 |
| 2025 | 4 | 2 |
| 2026 | 2 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Process for recovering materials from bauxite residue, microwave reactor for heating mining products and method for heating a mining product7 Apr 2026US 12,595,185 B2New Wave Royalties Sociedad Anonima
- Feedstock composite with carbonaceous material having a tailored density17 Mar 2026US 12,577,124 B2Kronos International, Inc.
- Recycling of components contained in a residue obtained from the chloride process23 Dec 2025US 12,503,374 B2Kronos International, Inc.
- Method for enriching niobium and titanium in a mineral containing iron, niobium and titanium and a use of a nickel-containing substance26 Aug 2025US 12,398,441 B2Baotou Research Institute of Rare Earths
- System for processing red mud and method of processing red mud22 Jul 2025US 12,365,954 B2Red Mud Enterprises LLC
- Process for recovering materials from bauxite residue, microwave reactor for heating mining products and method for heating a mining product4 Jun 2026US 2026/0152407 A1New Wave Royalties Sociedad Anonima
- Process of providing titanium dioxide and/or vanadium oxide26 Mar 2026US 2026/0085382 A1Fodere Titanium Limited
- Methods of making upgraded synthetic rutile15 Jan 2026US 2026/0015691 A1University of Utah Research Foundation
- System for processing red mud and method of processing red mud1 Jan 2026US 2026/0002225 A1Red Mud Enterprises LLC
- Recycling of components contained in a residue obtained from the chloride process17 Apr 2025US 2025/0122090 A1Kronos International, Inc.
Most cited
By later US patents
- Process for beneficiating titaniferous ores49US 4,389,391 A1983
- Process for producing an aqueous solution comprising ferric chloride37US 5,935,545 AE. I. Du Pont de Nemours and Company · 1999
- Method for producing titanium oxide from ore concentrates25US 5,679,131 APhotran Corporation · 1997
- Method for concentrating heavy minerals in the solids tailings from hot water extraction of tar sands20US 4,150,093 ACanada-Cities Service, Ltd. · 1979
- Upgrading sorelslag for production of synthetic rutile17US 4,038,363 AQuebec Iron & Titanium Corporation-Fer et Titane due Quebec, Inc. · 1977