C22B 34/1209
By dry processes
Official title: {by dry processes, e.g. with selective chlorination of iron or with formation of a titanium bearing slag}
C22B34/1209 (By dry processes) appears on 71 US grants and 51 published applications in this corpus.
Search patents in C22B- Granted patents
- 71
- Published applications
- 51
- Assignees
- 66
- Inventors
- 203
- Latest grant
- 26 Aug 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 4 | 0 |
| 1980 | 3 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 4 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 3 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 1 |
| 2002 | 2 | 2 |
| 2003 | 1 | 3 |
| 2004 | 3 | 1 |
| 2005 | 0 | 1 |
| 2006 | 0 | 3 |
| 2007 | 0 | 3 |
| 2008 | 1 | 3 |
| 2009 | 3 | 6 |
| 2010 | 3 | 3 |
| 2011 | 5 | 1 |
| 2012 | 1 | 2 |
| 2013 | 3 | 5 |
| 2014 | 1 | 1 |
| 2015 | 1 | 1 |
| 2016 | 1 | 3 |
| 2017 | 1 | 0 |
| 2018 | 3 | 2 |
| 2019 | 0 | 1 |
| 2020 | 0 | 2 |
| 2021 | 1 | 1 |
| 2022 | 1 | 1 |
| 2023 | 0 | 2 |
| 2024 | 1 | 1 |
| 2025 | 1 | 0 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- 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
- Method for processing titanium extraction slag and carbon extracted and dechlorinated tailing20 Feb 2024US 11,905,575 B2Southwest University of Science and Technology
- Use of pre-oxidized ilmenite in fluidized bed boilers16 Aug 2022US 11,414,725 B2Improbed AB
- Use of pre-oxidized ilmenite in fluidized bed boilers23 Feb 2021US 10,927,432 B2Improbed AB
- Method for preparing rutile from acid-soluble titanium slag28 Aug 2018US 10,060,009 B2Yunnan Minzu University
- 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
- Recovery Of Chlorine From Hydrogen Chloride Generated In Carbochlorination Processes1 Feb 2024US 2024/0034638 A1Kronos International, Inc.
- A method for enriching niobium and titanium in a mineral containing iron, niobium and titanium and a use of a nickel-containing substance28 Dec 2023US 2023/0416870 A1Baotou Research Institute of Rare Earths
- Processing of titaniferous ores and minerals5 Oct 2023US 2023/0312364 A1Fnc Technologies 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 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
- Recovery of scandium, yttrium and lanthanides from titanium ore13US 5,049,363 AWestinghouse Electric Corp. · 1991