C21C 5/4606
Lances or injectors
Official title: {Lances or injectors}
C21C5/4606 (Lances or injectors) appears on 372 US grants and 224 published applications in this corpus.
Search patents in C21C- Granted patents
- 372
- Published applications
- 224
- Assignees
- 184
- Inventors
- 687
- Latest grant
- 21 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 7 | 0 |
| 1978 | 13 | 0 |
| 1979 | 3 | 0 |
| 1980 | 5 | 0 |
| 1981 | 8 | 0 |
| 1982 | 4 | 0 |
| 1983 | 11 | 0 |
| 1984 | 10 | 0 |
| 1985 | 10 | 0 |
| 1986 | 3 | 0 |
| 1987 | 7 | 0 |
| 1988 | 20 | 0 |
| 1989 | 6 | 0 |
| 1990 | 7 | 0 |
| 1991 | 9 | 0 |
| 1992 | 7 | 0 |
| 1993 | 7 | 0 |
| 1994 | 17 | 0 |
| 1995 | 4 | 0 |
| 1996 | 6 | 0 |
| 1997 | 2 | 0 |
| 1998 | 10 | 0 |
| 1999 | 7 | 0 |
| 2000 | 8 | 0 |
| 2001 | 12 | 5 |
| 2002 | 14 | 5 |
| 2003 | 8 | 11 |
| 2004 | 9 | 9 |
| 2005 | 4 | 11 |
| 2006 | 1 | 9 |
| 2007 | 2 | 10 |
| 2008 | 8 | 12 |
| 2009 | 8 | 12 |
| 2010 | 8 | 4 |
| 2011 | 5 | 13 |
| 2012 | 9 | 9 |
| 2013 | 7 | 8 |
| 2014 | 9 | 13 |
| 2015 | 8 | 10 |
| 2016 | 7 | 10 |
| 2017 | 8 | 6 |
| 2018 | 7 | 8 |
| 2019 | 10 | 8 |
| 2020 | 5 | 11 |
| 2021 | 5 | 1 |
| 2022 | 5 | 9 |
| 2023 | 6 | 7 |
| 2024 | 3 | 11 |
| 2025 | 2 | 2 |
| 2026 | 6 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Lance for blowing oxygen in steelmaking21 Jul 2026US 12,686,894 B2ArcelorMittal
- Method for simultaneously injecting a fuel gas and an oxygen-rich gas into a unit14 Apr 2026US 12,601,022 B2SMS group GmbH
- Molten iron dephosphorization method24 Mar 2026US 12,584,183 B2Jfe Steel Corporation
- Blowing control method for maintaining mushroom head of bottom-blowing nozzle converter10 Mar 2026US 12,571,061 B2Soochow University
- Method for the pyrometallurgical smelting of metal-containing raw materials, waste materials and/or secondary waste materials20 Jan 2026US 12,529,125 B2SMS group GmbH
- Granule and/or powder solid materials injection lance for injecting solid materials in the form of granules and/or powders into a metallurgical furnace23 Jul 2026US 2026/0209875 A1Tenova S. P. A.
- Molten iron dephosphorization method2 Jul 2026US 2026/0185173 A1Jfe Steel Corporation
- A method for manufacturing pig iron in an electrical smelting furnace and associated furnace25 Jun 2026US 2026/0176708 A1
- Method and apparatus for co-injecting carbon-based particulate and oxygen-based gas streams into a liquid bath25 Jun 2026US 2026/0176709 A1
- Methods for producing syngas from biomass-co2 coupled converter smelting processes2 Apr 2026US 2026/0092227 A1University of Science and Technology Beijing
Most cited
By later US patents
- Apparatus and method for submerged injection of a feed composition into a molten metal bath151US 5,443,572 AMolten Metal Technology, Inc. · 1995
- Universal coupling117US 6,358,467 B1Metaullics Systems Co., L.P. · 2002
- Method and apparatus for generating highly luminous flame78US 4,797,087 AAmerican Combustion, Inc. · 1989
- Apparatus for electric steelmaking43US 5,714,113 AAmerican Combustion, Inc. · 1998
- Regenerative burner42US 4,923,391 AAmerican Combustion, Inc. · 1990