C21B 13/085
Wherein iron or steel is obtained in a molten state
Official title: {wherein iron or steel is obtained in a molten state}
C21B13/085 (Wherein iron or steel is obtained in a molten state) appears on 22 US grants and 16 published applications in this corpus.
Search patents in C21B- Granted patents
- 22
- Published applications
- 16
- Assignees
- 12
- Inventors
- 31
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 2 |
| 2002 | 2 | 2 |
| 2003 | 3 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 1 | 0 |
| 2015 | 1 | 0 |
| 2016 | 1 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 7 |
| 2024 | 0 | 1 |
| 2025 | 0 | 0 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method and apparatus for manufacturing cement using rotary generated thermal energy28 Jul 2026US 12,692,192 B2Coolbrook Oy
- Method and apparatus for heating fluids in processes related to refining and petrochemical industries using rotary generated thermal energy9 Jun 2026US 12,649,689 B2Coolbrook Oy
- Process and plant for producing char and fuel gas21 Jun 2016US 9,371,487 B2Outotec Oyj
- Process and plant for producing char and fuel gas3 Nov 2015US 9,175,226 B2Outotec Oyj
- Method for operating a furnace and device for carrying out the method13 May 2014US 8,721,764 B2L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Refining and/or petrochemical facility and apparatus for heating fluids in processes related to refining and petrochemical industries using rotary generated thermal energy17 Sep 2026US 2026/0274747 A1Coolbrook Oy
- Pyrometallurgical Method for Recycling Shredded Material of Waste from the Production of New and Defective or End-of-Life Batteries for Electric Vehicles or Portable Li-Ion Batteries13 Jun 2024US 2024/0191316 A1Eco'ring
- Method and apparatus for manufacturing steel using rotary generated thermal energy20 Apr 2023US 2023/0121974 A1Coolbrook Oy
- Method and apparatus for manufacturing cement using rotary generated thermal energy13 Apr 2023US 2023/0110304 A1Coolbrook Oy
- Method and apparatus for manufacturing high-temperature materials using rotary generated thermal energy13 Apr 2023US 2023/0112124 A1Coolbrook Oy
Most cited
By later US patents
- Direct iron and steelmaking49US 6,383,251 B12002
- Continuous steelmaking and casting19US 4,456,476 A1984
- Continuous steelmaking and casting18US 4,615,511 A1986
- Method for reclaiming metal values from electric arc furnace flue dust and sludge and rendering residual solids recyclable or non-hazardous16US 4,836,847 AZia Technology, Inc. · 1989
- Direct iron and steelmaking13US 5,542,963 A1996