C21B 15/006
Manufacture of iron or steel: other processes for the manufacture of iron
Official title: {By a chloride process}
C21B15/006 (Manufacture of iron or steel: other processes for the manufacture of iron) appears on 22 US grants and 12 published applications in this corpus.
Search patents in C21B- Granted patents
- 22
- Published applications
- 12
- Assignees
- 21
- Inventors
- 70
- Latest grant
- 26 Mar 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 3 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 1 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 2 |
| 2015 | 0 | 1 |
| 2016 | 1 | 3 |
| 2017 | 1 | 0 |
| 2018 | 2 | 0 |
| 2019 | 1 | 0 |
| 2020 | 0 | 1 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 1 | 2 |
| 2024 | 1 | 0 |
| 2025 | 0 | 2 |
By publication year. Applications have been published since 2001.
Recent patents
- Process for the purification of waste materials or industrial by-products comprising chlorine26 Mar 2024US 11,938,527 B2amaTEQ Holding GmbH
- Process for the purification of waste materials or industrial by-products comprising chlorine26 Dec 2023US 11,850,641 B2amaTEQ Holding GmbH
- Processes for preparing alumina and various other products8 Jan 2019US 10,174,402 B2Orbite Technologies Inc.
- Method and plant for producing iron from roasted pyrites13 Nov 2018US 10,125,403 B2Blücher GmbH
- System and method for the recovery of metal values from slags, drosses, and other metal-bearing materials17 Apr 2018US 9,945,005 B2Metals Technology Development Company LLC
- Method for recovering valuable metals from positive electrode of waste lithium iron phosphate15 May 2025US 2025/0158146 A1National Engineering Research Center of Advanced Energy Storage Materials (Shenzhen) Co., Ltd.
- Process for the refining of iron oxides, iron oxides resulting thereof and their use6 Feb 2025US 2025/0042764 A1BASF SE
- Smelting apparatus and metallurgical processes thereof5 Oct 2023US 2023/0314076 A1NSGI Steel Inc.
- Methods of metal extraction15 Jun 2023US 2023/0183827 A1
- Process for the purification of waste materials or industrial by-products comprising chlorine16 Jul 2020US 2020/0222954 A1Ferro Duo GmbH
Most cited
By later US patents
- Process for recovering mineral values from fly ash26US 4,130,627 A1978
- Process for the production of high surface area tantalum and/or niobium powders24US 6,786,951 B2Ningxia Orient Tantalum Industry Co., Ltd. · 2004
- Manufacture of titanium chloride and metallic iron from titaniferous materials containing iron oxides11US 3,989,510 A1976
- Processes for preparing alumina and various other products11US 9,382,600 B2Orbite Technologies Inc. · 2016
- Process for producing finely divided metals deposited on oxidized metals9US 5,453,297 ABoard of Trustees operating Michigan State University · 1995