C21C 1/06
Constructional features of mixers for pig-iron
C21C1/06 (Constructional features of mixers for pig-iron) appears on 75 US grants and 43 published applications in this corpus.
Search patents in C21C- Granted patents
- 75
- Published applications
- 43
- Assignees
- 49
- Inventors
- 142
- Latest grant
- 5 Aug 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 4 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 4 | 0 |
| 1984 | 3 | 0 |
| 1985 | 2 | 0 |
| 1986 | 3 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 4 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 1 |
| 2003 | 1 | 0 |
| 2004 | 2 | 4 |
| 2005 | 2 | 1 |
| 2006 | 0 | 3 |
| 2007 | 0 | 1 |
| 2008 | 0 | 3 |
| 2009 | 3 | 0 |
| 2010 | 0 | 3 |
| 2011 | 0 | 5 |
| 2012 | 4 | 2 |
| 2013 | 3 | 2 |
| 2014 | 2 | 5 |
| 2015 | 2 | 2 |
| 2016 | 5 | 4 |
| 2017 | 4 | 2 |
| 2018 | 1 | 0 |
| 2019 | 1 | 0 |
| 2020 | 1 | 1 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 2 |
| 2024 | 1 | 2 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
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- Molten iron refining method and device thereof18 Sep 2018US 10,077,482 B2Posco
- Process for treating molten iron15 Feb 2024US 2024/0052443 A1
- Rotary device for treating molten metal15 Feb 2024US 2024/0052444 A1
- Low pressure molten metal transfer pump30 Nov 2023US 2023/0383754 A1Pyrotek, Inc.
- Method for iron making by continuous smelting reduction16 Mar 2023US 2023/0082269 A1Dongda Nonferrous Solid Waste Technology Research Institute (Liaoling) Co., Ltd
- Heating device and heating method of torpedo car16 Jan 2020US 2020/0017928 A1Nippon Steel Corporation
Most cited
By later US patents