C21B 7/125
Refractory plugging mass
Official title: {Refractory plugging mass}
C21B7/125 (Refractory plugging mass) appears on 28 US grants and 10 published applications in this corpus.
Search patents in C21B- Granted patents
- 28
- Published applications
- 10
- Assignees
- 24
- Inventors
- 60
- Latest grant
- 25 Mar 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 3 | 0 |
| 1978 | 3 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 4 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 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 | 2 |
| 2011 | 1 | 1 |
| 2012 | 1 | 1 |
| 2013 | 1 | 0 |
| 2014 | 0 | 0 |
| 2015 | 1 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 1 |
| 2018 | 0 | 0 |
| 2019 | 0 | 2 |
| 2020 | 1 | 0 |
| 2021 | 1 | 0 |
| 2022 | 0 | 1 |
| 2023 | 0 | 1 |
| 2024 | 0 | 0 |
| 2025 | 1 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method of heating up furnace bottom, and burner lance used in the method25 Mar 2025US 12,259,184 B2Jfe Steel Corporation
- Mud gun cap13 Apr 2021US 10,975,449 B2J. C K. Industries, Inc.
- Method of sealing and repairing a refractory tap hole22 Sep 2020US 10,781,497 B2Tata Steel Limited
- Clay gun machine cannon for metallurgical furnaces3 Mar 2015US 8,968,640 B2TMT Tapping-Measuring-Technology GmbH
- Sealing plug for tiltable converters16 Jul 2013US 8,486,327 B2
- Slag blocking device for a metallurgical vessel23 Jul 2026US 2026/0208261 A1Refractory Intellectual Property GmbH & Co.KG
- Mud material20 Jul 2023US 2023/0227632 A1Shinagawa Refractories Co., Ltd.
- Method of heating up furnace bottom, and burner lance used in the method9 Jun 2022US 2022/0178612 A1Jfe Steel Corporation
- Mud gun cap14 Nov 2019US 2019/0345574 A1J. C K. Industries, Inc.
- Drill bit, tap hole drilling machine equipped with said drill bit, and process for making said drill bit24 Jan 2019US 2019/0024978 A1
Most cited
By later US patents
- Process for making refractory shapes119US 4,150,078 ALava Crucible Refractories Company · 1979
- Plugging compositions for blast furnace tap holes22US 4,072,531 ASumitomo Durez Company, Ltd. · 1978
- Composition for plugging blast-furnace tap-hole16US 4,022,739 ATerrac Company Limited · 1977
- Plugging refractory material having resin binder system15US 4,379,866 AGeneral Refractories Company · 1983
- Tap hole mix11US 4,082,718 ANippon Steel Corporation · 1978