B22D 43/001
Retaining slag during pouring molten metal
Official title: {Retaining slag during pouring molten metal}
B22D43/001 (Retaining slag during pouring molten metal) appears on 116 US grants and 88 published applications in this corpus.
Search patents in B22D- Granted patents
- 116
- Published applications
- 88
- Assignees
- 81
- Inventors
- 290
- Latest grant
- 22 Apr 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 4 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 3 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 3 | 0 |
| 1991 | 2 | 0 |
| 1992 | 4 | 0 |
| 1993 | 4 | 0 |
| 1994 | 3 | 0 |
| 1995 | 9 | 0 |
| 1996 | 2 | 0 |
| 1997 | 4 | 0 |
| 1998 | 2 | 0 |
| 1999 | 5 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 1 |
| 2002 | 3 | 4 |
| 2003 | 3 | 3 |
| 2004 | 1 | 5 |
| 2005 | 3 | 5 |
| 2006 | 3 | 4 |
| 2007 | 2 | 3 |
| 2008 | 2 | 3 |
| 2009 | 1 | 3 |
| 2010 | 1 | 5 |
| 2011 | 2 | 3 |
| 2012 | 6 | 2 |
| 2013 | 1 | 1 |
| 2014 | 4 | 2 |
| 2015 | 2 | 0 |
| 2016 | 1 | 2 |
| 2017 | 2 | 2 |
| 2018 | 0 | 3 |
| 2019 | 3 | 1 |
| 2020 | 2 | 7 |
| 2021 | 4 | 8 |
| 2022 | 4 | 2 |
| 2023 | 6 | 4 |
| 2024 | 1 | 6 |
| 2025 | 2 | 6 |
| 2026 | 0 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Molten metal filter device for casting vehicle components22 Apr 2025US 12,280,421 B2GM Global Technology Operations LLC
- Pouring facility28 Jan 2025US 12,208,444 B2Fujiwa Denki Co., Ltd.
- Apparatus and methods for filtering metals21 May 2024US 11,986,881 B2Alcoa Canada Co.
- Aluminum-based ultra-thin launder24 Oct 2023US 11,795,522 B2Shenyang Hengtaixinyuan Casting Refractories Co., Ltd.
- Countergravity casting apparatus and desulfurization methods3 Oct 2023US 11,772,152 B2Rtx Corporation
- Slag blocking device for a metallurgical vessel23 Jul 2026US 2026/0208261 A1Refractory Intellectual Property GmbH & Co.KG
- Molten metal dispensing systems and methods for additive manufacturing in space5 Mar 2026US 2026/0061483 A1Blue Origin, LLC
- Countergravity Casting Apparatus and Desulfurization Methods19 Feb 2026US 2026/0048433 A1Rtx Corporation
- Filter For The Filtration Of A Liquid Metal30 Oct 2025US 2025/0332636 A1Les Produits Industriels de Haute Temperature Pyrotek Inc.
- Filter element for flow stabilisation and/or purifying a melt obtained during casting, and a method for producing a filter element24 Jul 2025US 2025/0235924 A1
Most cited
By later US patents
- Molten metal filter cartridge115US 5,741,422 AMetaullics Systems Co., L.P. · 1998
- Molten metal filter106US 5,126,047 AThe Carborundum Company · 1992
- Bonded particle filters104US 7,157,043 B2Pyrotek, Inc. · 2007
- Ceramic foam filter69US 3,947,363 ASwiss Aluminium Ltd. · 1976
- Ceramic foam filter68US 3,962,081 ASwiss Aluminium Ltd. · 1976