C01F 7/444
Apparatus therefor
C01F7/444 (Apparatus therefor) appears on 6 US grants and 8 published applications in this corpus.
Search patents in C01F- Granted patents
- 6
- Published applications
- 8
- Assignees
- 8
- Inventors
- 27
- Latest grant
- 11 Jun 2013
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
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| 1992 | 0 | 0 |
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| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
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| 2001 | 0 | 0 |
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| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 2 | 2 |
| 2013 | 1 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 1 |
| 2023 | 0 | 1 |
| 2024 | 0 | 1 |
| 2025 | 0 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Process and plant for producing metal oxide from metal salts11 Jun 2013US 8,460,624 B2Outotec Oyj
- Process and plant for producing metal oxide from metal salts20 Nov 2012US 8,313,715 B2Outotec Oyj
- Process for producing high-purity α-alumina28 Feb 2012US 8,124,048 B2Nippon Light Metal Company, Ltd.
- Equipment for and method of calcination of mineral materials with reduced emission of nitrogen oxides3 Feb 1998US 5,713,734 ATechnip
- Apparatus and method for the continuous calcination of aluminum hydroxide9 Jun 1987US 4,671,497 AKlockner-Humboldt-Deutz Aktiengesellschaft
- Calcination Apparatus and Process23 Jul 2026US 2026/0209059 A1Rio Tinto Alcan International Limited
- Method and apparatus for alumina calcination19 Sep 2024US 2024/0308868 A1The University of Adelaide
- Calcination apparatus and process using hydrogen2 Mar 2023US 2023/0064514 A1Rio Tinto Alcan International Limited
- Method for producing abrasive particles11 Aug 2022US 2022/0250210 A1Tyrolit Schleifmittelwerke Swarovski K.G.
- Process and plant for producing metal oxide from metal salts1 Mar 2012US 2012/0052000 A1Outotec Oyj
Most cited
By later US patents
- Method for producing anhydrous alumina17US 4,529,579 AF. L. Smidth & Co. · 1985
- Equipment for and method of calcination of mineral materials with reduced emission of nitrogen oxides11US 5,713,734 ATechnip · 1998
- Apparatus and method for the continuous calcination of aluminum hydroxide6US 4,671,497 AKlockner-Humboldt-Deutz Aktiengesellschaft · 1987
- Process for producing high-purity α-alumina2US 8,124,048 B2Nippon Light Metal Company, Ltd. · 2012
- Process and plant for producing metal oxide from metal salts1US 8,460,624 B2Outotec Oyj · 2013