C21C 5/443
Hot fettling
Official title: {Hot fettling; Flame gunning}
C21C5/443 (Hot fettling) appears on 17 US grants and 4 published applications in this corpus.
Search patents in C21C- Granted patents
- 17
- Published applications
- 4
- Assignees
- 18
- Inventors
- 53
- Latest grant
- 19 Sep 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 3 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 3 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 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 | 1 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 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 | 1 |
| 2023 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- 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
- Refractory composition and process for the repair of a hot refractory wall18 Dec 2007US 7,309,674 B2Vesuvius Crucible Company
- Surface treatment of refractories25 Jul 1995US 5,435,948 AFosbel International Limited
- Gunning composition15 Sep 1992US 5,147,834 AMagneco/Metrel, Inc.
- Method for torch guniting of a metallurgical unit26 Jul 1988US 4,759,531 AVsesojuzny Institut Ogneuporov
- 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
- 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.
- Refractory composition and process for the repair of a hot refractory wall1 Feb 2007US 2007/0027023 A1Vesuvius Crucible Company
Most cited
By later US patents
- Method and apparatus for repairing damaged surface of refractory lined vessel19US 4,107,244 ANippon Steel Corporation · 1978
- Gunning composition16US 5,147,834 AMagneco/Metrel, Inc. · 1992
- Apparatus for applying refractory material onto the inner surface of a furnace14US 4,222,522 AKurosaki Refractories Co., Ltd. · 1980
- Refractory gunning composition12US 4,168,177 ABethlehem Steel Corporation · 1979
- Method for increasing vessel lining life for basic oxygen furnaces11US 4,373,949 AUnion Carbide Corporation · 1983