C22B 15/0032
In shaft furnaces
Official title: {in shaft furnaces, e.g. blast furnaces}
C22B15/0032 (In shaft furnaces) appears on 23 US grants and 6 published applications in this corpus.
Search patents in C22B- Granted patents
- 23
- Published applications
- 6
- Assignees
- 19
- Inventors
- 94
- Latest grant
- 18 Apr 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 5 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 0 | 0 |
| 2017 | 1 | 0 |
| 2018 | 0 | 1 |
| 2019 | 1 | 1 |
| 2020 | 1 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 1 | 1 |
| 2024 | 0 | 0 |
| 2025 | 0 | 0 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Copper billet horizontal continuous casting apparatus and process with a vertical shaft furnace for smelting18 Apr 2023US 11,628,491 B2Zhejiang Hailiang Co., Ltd.
- Process and system for recycling E-waste material10 Mar 2020US 10,584,399 B2BlueOak Arkansas
- Processes for preparing various metals and derivatives thereof from copper- and sulfur-containing material2 Jul 2019US 10,337,083 B25N Plus Inc.
- Method and arrangement for refining copper concentrate28 Feb 2017US 9,580,771 B2Outotec (Finland) Oy
- Pyrometallurgical smelting method of copper15 Jun 1999US 5,912,401 ANippon Mining & Metals Co., Ltd.
- Shaft furnace for the smelting of copper and method therefor20 Aug 2026US 2026/0242893 A1SMS group GmbH
- Method and device for preparing an oxygen-free copper pipe from recycled copper, and a corrosion-resistant copper pipe and its casting process11 Jun 2026US 2026/0159917 A1Zhejiang Copper Processing Research Institute Co., Ltd.
- Copper billet horizontal continuous casting apparatus and process with a vertical shaft furnace for smelting12 Jan 2023US 2023/0011680 A1Zhejiang Hailiang Co., Ltd.
- Process and system for recycling e-waste material24 Jan 2019US 2019/0024210 A1BlueOak Arkansas
- Processes for preparing various metals and derivatives thereof from copper- and sulfur-containing material6 Sep 2018US 2018/0251873 A15N Plus Inc.
Most cited
By later US patents
- Vertical shaft melting furnace and method of melting65US 4,877,449 AInstitute of Gas Technology · 1989
- Method to protect the surface of metal in vertical melting furnaces20US 4,828,609 ALiquid Air Corporation · 1989
- Method and apparatus for simultaneously separating volatile and non-volatile metals13US 4,606,760 AFritz Enterprises, Inc. · 1986
- Production of blister copper directly from dead roasted-copper-iron concentrates using a shallow bed reactor12US 4,006,010 AAmax Inc. · 1977
- Tank furnace for the metallurgical treatment of non-ferrous metals8US 4,773,630 AShamprogetti S.p.A. · 1988