C21B 9/16
Cooling or drying the hot-blast
C21B9/16 (Cooling or drying the hot-blast) appears on 7 US grants and 2 published applications in this corpus.
Search patents in C21B- Granted patents
- 7
- Published applications
- 2
- Assignees
- 8
- Inventors
- 15
- Latest grant
- 6 May 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 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 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 0 |
| 2014 | 1 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 1 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Tuyere stock, method of fabricating the same, and air blast system for melting furnace6 May 2025US 12,291,756 B2Excello Co., Ltd.
- Device for regulating the temperature of a gas in a hot gas main18 Nov 2014US 8,889,060 B2Paul Wurth Refractory & Engineering GmbH
- Low dew point gas generator cooling system10 Sep 1996US 5,554,230 ASurface Combustion, Inc.
- Apparatus for regulating the quantities and percentages of the gaseous constituents of oxygen, nitrogen, carbon dioxide and water in reaction processes in metallurgical applications19 Oct 1982US 4,354,669 AMannesmann Demag AG
- Method for providing oxygen enhanced air for use in metallurgical processes24 Aug 1982US 4,345,939 AMannesmann Demag AG
Most cited
By later US patents
- Mixing chamber12US 4,150,817 AZimmermann & Jansen GmbH · 1979
- Apparatus for wet process dehydration of air to be supplied to blast furnace4US 4,178,158 ANippon Steel Corporation · 1979
- Method for providing oxygen enhanced air for use in metallurgical processes4US 4,345,939 AMannesmann Demag AG · 1982
- Low dew point gas generator cooling system3US 5,554,230 ASurface Combustion, Inc. · 1996