C21C 7/0068
Treating molten ferrous alloys: by introducing material into a current of streaming
Official title: {by introducing material into a current of streaming metal}
C21C7/0068 (Treating molten ferrous alloys: by introducing material into a current of streaming) appears on 21 US grants and 23 published applications in this corpus.
Search patents in C21C- Granted patents
- 21
- Published applications
- 23
- Assignees
- 21
- Inventors
- 67
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 3 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 3 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 2 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 2 |
| 2007 | 1 | 1 |
| 2008 | 1 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 1 |
| 2014 | 1 | 0 |
| 2015 | 1 | 2 |
| 2016 | 0 | 0 |
| 2017 | 1 | 1 |
| 2018 | 0 | 1 |
| 2019 | 0 | 0 |
| 2020 | 1 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 1 |
| 2023 | 0 | 2 |
| 2024 | 0 | 0 |
| 2025 | 1 | 2 |
| 2026 | 2 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method for producing chromium-containing molten steel16 Jun 2026US 12,655,488 B2Jfe Steel Corporation
- Decarburization refining method for molten steel under reduced pressure19 May 2026US 12,630,893 B2Jfe Steel Corporation
- Device and method for continuous desulphurisation of liquid hot metal5 Aug 2025US 12,378,617 B2Tata Steel Nederland Technology B.V.
- Granules containing agglomerated bulk material22 Sep 2020US 10,781,500 B2Rheinkalk GmbH
- Method for preparing low-cost clean steel18 Jul 2017US 9,708,676 B2
- A method for manufacturing pig iron in an electrical smelting furnace and associated furnace25 Jun 2026US 2026/0176708 A1
- A method for manufacturing pig iron in an electrical smelting furnace and associated electrical smelting furnace12 Feb 2026US 2026/0043100 A1
- A method for manufacturing pig iron in an electrical smelting furnace and associated electrical smelting furnace29 Jan 2026US 2026/0028687 A1
- Method for manufacturing pig iron into an electrical smelting furnace and associated smelting furnace22 Jan 2026US 2026/0022428 A1
- A method for manufacturing pig iron in an electrical smelting furnace and associated electrical smelting furnace22 Jan 2026US 2026/0022429 A1
Most cited
By later US patents
- Apparatus for generating a vortex in a melt127US 4,884,786 AGillespie & Powers, Inc. · 1989
- Apparatus for generating a vortex in a melt120US 4,940,214 AGillespie & Powers, Inc. · 1990
- Continuous stream treatment of ductile iron8US 4,191,563 AFord Motor Company · 1980
- Vortex reactor and method for adding solids to molten metal therewith8US 4,298,377 AUnion Carbide Corporation · 1981
- Method of treating molten metal5US 4,134,757 AMaterials and Methods Limited · 1979