C21C 2005/448
Lining wear indicators
Official title: {Lining wear indicators}
C21C2005/448 (Lining wear indicators) appears on 10 US grants and 8 published applications in this corpus.
Search patents in C21C- Granted patents
- 10
- Published applications
- 8
- Assignees
- 11
- Inventors
- 31
- Latest grant
- 7 Jan 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1983 | 1 | 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 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 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 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 0 | 2 |
| 2017 | 1 | 1 |
| 2018 | 1 | 1 |
| 2019 | 0 | 0 |
| 2020 | 1 | 0 |
| 2021 | 1 | 0 |
| 2022 | 0 | 1 |
| 2023 | 0 | 0 |
| 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
- System and method for estimating both thickness and wear state of refractory material of a metallurgical furnace7 Jan 2025US 12,188,904 B2ArcelorMittal
- Method for determining the state of a refractory lining of a metallurgical vessel for molten metal in particular2 Mar 2021US 10,935,320 B2Refractory Intellectual Property GmbH & Co.KG
- Predictive refractory performance measurement system8 Dec 2020US 10,859,316 B1HarbisonWalker International, Inc.
- Apparatus for determining thickness of lining layer6 Feb 2018US 9,885,566 B2Johnson Matthey Public Limited Company
- Gas purging plug comprising wear indicators19 Sep 2017US 9,766,014 B2Vesuvius Crucible Company
- Refractory monitoring system for high-voltage and high-temperature environment applications6 Aug 2026US 2026/0227184 A1
- System and method for estimating both thickness and wear state of refractory material of a metallurgical furnace22 Dec 2022US 2022/0404316 A1ArcelorMittal
- Method for determining the state of a refractory lining of a metallurgical vessel for molten metal in particular6 Dec 2018US 2018/0347907 A1Refractory Intellectual Property GmbH & Co.KG
- Apparatus for determining thickness of lining layer13 Jul 2017US 2017/0199032 A1Johnson Matthey Public Limited Company
- Method for determining the state of the tap of a metallurgical vessel in particular13 Oct 2016US 2016/0298907 A1Refrectory Intellectual Property GmbH & Co. KG
Most cited
By later US patents
- Gas stir plug device with visual wear indicator21US 5,249,778 ADolomitwerke GmbH · 1993
- Gas stir plug wear indicator including low melting point component and method of use18US 5,330,160 AMartin & Pagenstecher GmbH · 1994
- Porous plug for molten metal vessel5US 4,385,752 AAikoh America Corp. · 1983
- Gas stir devices with refractory material erosion depth indicator and method of making the same5US 5,421,561 AMartin & Pagenstecher GmbH · 1995
- Predictive refractory performance measurement system4US 10,859,316 B1HarbisonWalker International, Inc. · 2020