C22B 9/055
While the metal is circulating
Official title: {while the metal is circulating, e.g. combined with filtration}
C22B9/055 (While the metal is circulating) appears on 77 US grants and 20 published applications in this corpus.
Search patents in C22B- Granted patents
- 77
- Published applications
- 20
- Assignees
- 33
- Inventors
- 101
- Latest grant
- 20 May 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 3 | 0 |
| 1978 | 2 | 0 |
| 1979 | 4 | 0 |
| 1980 | 2 | 0 |
| 1981 | 3 | 0 |
| 1982 | 3 | 0 |
| 1983 | 5 | 0 |
| 1984 | 3 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 3 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 3 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 7 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 7 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 0 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 2 |
| 2006 | 0 | 2 |
| 2007 | 0 | 0 |
| 2008 | 1 | 3 |
| 2009 | 1 | 0 |
| 2010 | 3 | 0 |
| 2011 | 1 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 1 |
| 2014 | 0 | 0 |
| 2015 | 1 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 1 |
| 2018 | 0 | 1 |
| 2019 | 0 | 1 |
| 2020 | 0 | 2 |
| 2021 | 1 | 0 |
| 2022 | 0 | 1 |
| 2023 | 0 | 1 |
| 2024 | 0 | 0 |
| 2025 | 1 | 2 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Metal melting apparatus, screen plate for metal melting, and method of melting metal20 May 2025US 12,305,919 B2Tounetsu Co., Ltd.
- Open exit molten metal gas injection pump7 Dec 2021US 11,193,492 B2Pyrotek, Inc.
- Device for degassing molten steel with an improved discharge nozzle10 Nov 2015US 9,181,602 B2SMS group GmbH
- In-line salt refining of molten aluminium alloys27 Sep 2011US 8,025,712 B2Rio Tinto Alcan International Limited
- Material submergence system12 Oct 2010US 7,811,509 B2Pyrotek, Inc.
- Ni-cr-fe-mo alloys with excellent surface properties and their production methods28 May 2026US 2026/0146308 A1Nippon Yakin Kogyo Co., Ltd.
- Acoustic rotary liquid processor29 Jan 2026US 2026/0028694 A1
- Energy efficient salt-free recovery of metal from dross23 Oct 2025US 2025/0327150 A1Pyrogenesis Canada Inc.
- Metal melting apparatus, screen plate for metal melting, and method of melting metal20 Feb 2025US 2025/0060162 A1Tounetsu Co., Ltd.
- Energy efficient salt-free recovery of metal from dross9 Nov 2023US 2023/0357888 A1Pyrogenesis Canada Inc.
Most cited
By later US patents
- Treatment of molten light metals and apparatus146US 4,931,091 AAlcan International Limited · 1990
- Metal treatment system131US 4,392,888 AAluminum Company of America · 1983
- Dual impeller vortex system and method130US 5,268,020 A1993
- Molten metal pump with filter121US 5,078,572 AThe Carborundum Company · 1992
- Molten metal pump with filter119US 5,286,163 AThe Carborundum Company · 1994