C21C 5/441
Equipment used for making or repairing linings
Official title: {Equipment used for making or repairing linings}
C21C5/441 (Equipment used for making or repairing linings) appears on 57 US grants and 14 published applications in this corpus.
Search patents in C21C- Granted patents
- 57
- Published applications
- 14
- Assignees
- 46
- Inventors
- 144
- Latest grant
- 25 Feb 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 3 | 0 |
| 1978 | 4 | 0 |
| 1979 | 2 | 0 |
| 1980 | 3 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 5 | 0 |
| 1984 | 2 | 0 |
| 1985 | 3 | 0 |
| 1986 | 1 | 0 |
| 1987 | 3 | 0 |
| 1988 | 7 | 0 |
| 1989 | 1 | 0 |
| 1990 | 3 | 0 |
| 1991 | 0 | 0 |
| 1992 | 4 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 1 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 2 | 2 |
| 2007 | 2 | 1 |
| 2008 | 0 | 1 |
| 2009 | 1 | 0 |
| 2010 | 0 | 2 |
| 2011 | 0 | 1 |
| 2012 | 1 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 1 |
| 2022 | 0 | 2 |
| 2023 | 1 | 0 |
| 2024 | 0 | 1 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Method for protecting an inner wall of a shaft furnace25 Feb 2025US 12,235,047 B2Paul Wurth S. A.
- Method and apparatus for batch production of, and continuous application of, a refractory composition to a surface19 Sep 2023US 11,759,855 B2Vesuvius USA Corporation
- Method and device for operating a change converter unit of an oxygen steel-making plant29 May 2012US 8,187,526 B2SMS Siemag Aktiengesellschaft
- Non-destructive testing of the lining of a process vessel7 Jul 2009US 7,555,931 B2P-Response IP Pty Ltd
- Refractory composition and process for the repair of a hot refractory wall18 Dec 2007US 7,309,674 B2Vesuvius Crucible Company
- Transport apparatus, lining machine, system and method for operating a system of this type27 Jun 2024US 2024/0209466 A1Primetals Technologies Austria GmbH
- Method and apparatus for batch production of, and continuous application of, a refractory composition to a surface29 Dec 2022US 2022/0410257 A1Vesuvius U S A Corporation
- Method for protecting an inner wall of a shaft furnace10 Mar 2022US 2022/0074667 A1Paul Wurth S. A.
- Fully automatic refractory spraying robot with measurement system13 May 2021US 2021/0140711 A1Piromet Pirometalurji Malzeme Refrakter Makina Sanayive Ticaret Anonim Sieketi
- Hot gunning repair mix10 Feb 2011US 2011/0034317 A1Shinagawa Refractories Co., Ltd.
Most cited
By later US patents
- Scanning laser measurement system69US 5,212,738 AMartin Marietta Magnesia Specialties Inc. · 1993
- Automated apparatus for lining the wall of a vessel with bricks33US 4,827,689 APaul Wurth S. A. · 1989
- Work facilitating apparatus for conveying building material from a higher to a lower level32US 4,303,363 ACervinter AB · 1981
- Work-facilitating apparatus for lining converters, metallurgical furnaces, holding vessels and like equipment31US 4,033,463 ACervinter AB · 1977
- Apparatus for lining the inner wall of a vessel with bricks31US 4,708,562 AArbed S.A. · 1987