C21B 9/06
Linings
C21B9/06 (Linings) appears on 28 US grants and 15 published applications in this corpus.
Search patents in C21B- Granted patents
- 28
- Published applications
- 15
- Assignees
- 21
- Inventors
- 79
- Latest grant
- 17 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 4 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 3 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 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 | 1 |
| 2008 | 0 | 1 |
| 2009 | 0 | 1 |
| 2010 | 0 | 2 |
| 2011 | 0 | 0 |
| 2012 | 0 | 3 |
| 2013 | 3 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 0 | 0 |
| 2017 | 1 | 1 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 2 |
| 2023 | 0 | 1 |
| 2024 | 0 | 0 |
| 2025 | 2 | 2 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Support assembly in a heat storage device17 Mar 2026US 12,578,144 B2Paul Wurth Deutschland GmbH
- Method for monitoring the wear of a refractory lining of a blast furnace8 Apr 2025US 12,270,606 B2ArcelorMittal
- Method for protecting an inner wall of a shaft furnace25 Feb 2025US 12,235,047 B2Paul Wurth S. A.
- Furnace, refractory installing method, and refractory block1 Aug 2017US 9,719,148 B2Nippon Steel & Sumitomo Metal Corporation
- Method of demolishing furnace of multilayered-refractory structure12 Nov 2013US 8,578,582 B2Nippon Steel Engineering Co., Ltd.
- Interlocking refractory bricks and refractory layer structures formed therewith31 Jul 2025US 2025/0243101 A1HarbisonWalker International Holdings, Inc.
- Refractory layer structures and assemblies for vessels exposed to molten materials31 Jul 2025US 2025/0244077 A1HarbisonWalker International Holdings, Inc.
- Support assembly in a heat storage device30 Nov 2023US 2023/0384035 A1Paul Wurth Deutschland GmbH
- Method for monitoring the wear of a refractory lining of a blast furnace21 Apr 2022US 2022/0120499 A1ArcelorMittal
- Method for protecting an inner wall of a shaft furnace10 Mar 2022US 2022/0074667 A1Paul Wurth S. A.
Most cited
By later US patents
- Swing scaffold for hot blast stove checker chamber relining11US 4,276,956 AAndco Incorporated · 1981
- Method for reducing stress corrosion cracking in high-temperature regenerative air heaters9US 4,444,555 AKoppers Company, Inc. · 1984
- Hot blast stove erection process7US 4,221,537 AAndco Incorporated · 1980
- Hot-blast stove for a blast furnace6US 4,005,982 ADidier-Werke AG · 1977
- Blast heating apparatus for blast furnaces6US 4,508,504 ADidier-Werke AG · 1985