C21B 9/10
Stoves for heating the blast in blast furnaces: other details
Official title: Other details, e.g. blast mains
C21B9/10 (Stoves for heating the blast in blast furnaces: other details) appears on 41 US grants and 22 published applications in this corpus.
Search patents in C21B- Granted patents
- 41
- Published applications
- 22
- Assignees
- 31
- Inventors
- 77
- Latest grant
- 6 May 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 3 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 1 |
| 2004 | 1 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 2 |
| 2011 | 1 | 3 |
| 2012 | 0 | 5 |
| 2013 | 1 | 0 |
| 2014 | 1 | 2 |
| 2015 | 5 | 1 |
| 2016 | 1 | 1 |
| 2017 | 0 | 0 |
| 2018 | 3 | 2 |
| 2019 | 1 | 1 |
| 2020 | 0 | 0 |
| 2021 | 1 | 0 |
| 2022 | 0 | 1 |
| 2023 | 0 | 0 |
| 2024 | 0 | 1 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Tuyere stock, method of fabricating the same, and air blast system for melting furnace6 May 2025US 12,291,756 B2Excello Co., Ltd.
- Top combustion stove12 Oct 2021US 11,142,804 B2Paul Wurth Deutschland GmbH
- Method for operating blast furnace26 Nov 2019US 10,487,370 B2Jfe Steel Corporation
- Method for heating a blast furnace stove20 Feb 2018US 9,896,735 B2Linde Aktiengesellschaft
- Method and apparatus for supplying blast to a blast furnace16 Jan 2018US 9,868,998 B2Primetals Technologies, Limited
- Electric stove12 Dec 2024US 2024/0410616 A1Paul Wurth S. A.
- Tuyere stock, method of fabricating the same, and air blast system for melting furnace22 Sep 2022US 2022/0298591 A1Excello Co., Ltd.
- Inlet arrangement for collection of carry over for a vertical regenerator of an end-port furnace28 Nov 2019US 2019/0360690 A1Refractory Intellectual Property GmbH & Co.KG
- Top combustion stove29 Nov 2018US 2018/0340237 A1Paul Wurth Refractory & Engineering GmbH
- Method for operating blast furnace15 Feb 2018US 2018/0044745 A1Jfe Steel Corporation
Most cited
By later US patents
- Valve system and improved actuator therefor15US 4,158,367 AS. A. des Anciens Etablissements Paul Wurth · 1979
- Shut-off valve for interrupting a flow of a fluid through a pipeline9US 4,337,789 AHermann Rappold & Co. GmbH · 1982
- Ventilated poppet damper8US 4,103,708 AAmerican Air Filter Company, Inc. · 1978
- Slide valve for closing a large pressurized gas conveying pipe7US 4,018,420 AHermann Rappold & Co. GmbH · 1977
- Fail-closed, tight seal gas safety valve system7US 4,553,731 ABethlehem Steel Corporation · 1985