B22D 41/18
Stopper-rods therefor
B22D41/18 (Stopper-rods therefor) appears on 67 US grants and 57 published applications in this corpus.
Search patents in B22D- Granted patents
- 67
- Published applications
- 57
- Assignees
- 38
- Inventors
- 151
- Latest grant
- 31 Dec 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 3 | 0 |
| 1992 | 3 | 0 |
| 1993 | 2 | 0 |
| 1994 | 4 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 3 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 1 |
| 2002 | 5 | 4 |
| 2003 | 4 | 0 |
| 2004 | 0 | 3 |
| 2005 | 1 | 2 |
| 2006 | 1 | 3 |
| 2007 | 3 | 3 |
| 2008 | 0 | 3 |
| 2009 | 2 | 3 |
| 2010 | 0 | 4 |
| 2011 | 2 | 1 |
| 2012 | 1 | 7 |
| 2013 | 2 | 1 |
| 2014 | 2 | 2 |
| 2015 | 1 | 0 |
| 2016 | 2 | 4 |
| 2017 | 2 | 3 |
| 2018 | 4 | 0 |
| 2019 | 1 | 1 |
| 2020 | 1 | 1 |
| 2021 | 2 | 0 |
| 2022 | 0 | 5 |
| 2023 | 1 | 1 |
| 2024 | 3 | 1 |
| 2025 | 0 | 1 |
| 2026 | 0 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Ventilating stopper rod with temperature measurement function31 Dec 2024US 12,179,260 B2Shenyang Taihe Metallurgical Measurement and Control Technologies Co., Ltd.
- Stopper for continuous casting and continuous casting method2 Jul 2024US 12,023,730 B2Krosakiharima Corporation
- Stopper rod and a method for providing a uniform gas curtain around a stopper rod11 Jun 2024US 12,005,494 B2Refractory Intellectual Property GmbH & Co.KG
- Nozzle, and nozzle and stopper combination5 Sep 2023US 11,745,257 B2Krosakiharima Corporation
- Ceramic refractory stopper15 Jun 2021US 11,033,957 B2Refractory Intellectual Property GmbH & Co.KG
- Ridged tundish stopper14 May 2026US 2026/0131375 A1Vesuvius Group S. A.
- Ridged tundish stopper23 Apr 2026US 2026/0108940 A1Vesuvius Group S. A.
- Stopper rod and method for inducing a rotational flow of a molten metal1 Jan 2026US 2026/0001123 A1Refractory Intellectual Property GmbH & Co.KG
- Refractory Coating20 Feb 2025US 2025/0059102 A1Vibrantz Minerals Limited
- Stopper for continuous casting15 Aug 2024US 2024/0269737 A1Krosakiharima Corporation
Most cited
By later US patents
- Erosion, thermal shock and oxidation resistant refractory compositions18US 5,185,300 AVesuvius Crucible Company · 1993
- Gas permeable stopper rod13US 4,791,978 AVesuvius Crucible Company · 1988
- Molten metal distribution launder13US 5,316,071 AWagstaff, Inc. · 1994
- Stopper for use in molten metal handling12US 4,706,944 AThor Ceramics Limited · 1987
- Refractory shape having an external layer capable of forming a layer impermeable to gases and process for its preparation12US 5,691,061 AVesuvius Crucible Company · 1997