C21B 2400/068
With a sealed or controlled environment
Official title: with a sealed or controlled environment
C21B2400/068 (With a sealed or controlled environment) appears on 13 US grants and 5 published applications in this corpus.
Search patents in C21B- Granted patents
- 13
- Published applications
- 5
- Assignees
- 9
- Inventors
- 36
- Latest grant
- 21 Dec 2021
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 1 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 2 |
| 2014 | 0 | 0 |
| 2015 | 2 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 1 |
| 2021 | 2 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Method and apparatus for producing direct reduced iron utilizing a catalytical pretreatment of hydrocarbons as a source of reducing gas21 Dec 2021US 11,203,791 B2Danieli & C. Officine Meccaniche SpA
- Second-level liquid slag cache system with flow and temperature monitoring and control functions3 Aug 2021US 11,079,179 B2Xi' An Jiaotong University
- Apparatus for atomizing molten slag and recovering valuable metal22 Sep 2015US 9,139,889 B2Hyundai Steel Company
- Method for manufacturing plate inorganic nonmetal material using molten slag31 Mar 2015US 8,991,212 B2Shandong Coking Group Co., Ltd.
- Method and apparatus for treatment of metallurgical slag and the like27 May 2008US 7,377,955 B1
- Method and apparatus for producing direct reduced iron utilizing a catalytical pretreatment of hydrocarbons as a source of reducing gas4 Feb 2021US 2021/0032712 A1Danieli & C. Officine Meccaniche SpA
- Second-level liquid slag cache system with flow and temperature monitoring and control functions12 Nov 2020US 2020/0355437 A1Xi' An Jiaotong University
- Apparatus for atomizing molten slag and recovering valuable metal5 Sep 2013US 2013/0228958 A1Hyundai Steel Company
- Method for manufacturing plate inorganic nonmetal material using molten slag4 Jul 2013US 2013/0167586 A1Shandong Coking Group Co., Ltd.
- Method for accelerating separation of granular metallic iron from slag2 Sep 2004US 2004/0168550 A1
Most cited
By later US patents
- Method and device for granulating and comminuting liquid slags16US 6,196,479 B1"Holderbank" Financiere Glarus AG · 2001
- Slag bath generator14US 4,013,427 ADr. C. Otto & Comp. G.m.b.H. · 1977
- Method and apparatus for handling slag handling12US 4,018,588 AEcolaire Incorporated · 1977
- Method and apparatus for cooling and solidifying red-hot molten blast furnace slag11US 5,820,814 A1998
- Metallurgical furnace vacuum slag removal7US 5,305,990 A1994