C21C 5/32
Blowing from above
Official title: Blowing from above (C21C5/35 takes precedence)
C21C5/32 (Blowing from above) appears on 68 US grants and 45 published applications in this corpus.
Search patents in C21C- Granted patents
- 68
- Published applications
- 45
- Assignees
- 50
- Inventors
- 190
- Latest grant
- 21 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 6 | 0 |
| 1978 | 3 | 0 |
| 1979 | 2 | 0 |
| 1980 | 3 | 0 |
| 1981 | 3 | 0 |
| 1982 | 2 | 0 |
| 1983 | 3 | 0 |
| 1984 | 2 | 0 |
| 1985 | 4 | 0 |
| 1986 | 4 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 2 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 2 |
| 2007 | 0 | 1 |
| 2008 | 0 | 2 |
| 2009 | 2 | 2 |
| 2010 | 0 | 0 |
| 2011 | 0 | 2 |
| 2012 | 1 | 1 |
| 2013 | 2 | 0 |
| 2014 | 2 | 3 |
| 2015 | 0 | 4 |
| 2016 | 1 | 0 |
| 2017 | 1 | 1 |
| 2018 | 2 | 1 |
| 2019 | 0 | 0 |
| 2020 | 0 | 4 |
| 2021 | 1 | 4 |
| 2022 | 2 | 8 |
| 2023 | 3 | 2 |
| 2024 | 3 | 6 |
| 2025 | 0 | 2 |
| 2026 | 3 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Lance for blowing oxygen in steelmaking21 Jul 2026US 12,686,894 B2ArcelorMittal
- Biomass pyrolysis integrated with bio-reduction of metal ores, hydrogen production, and/or activated-carbon production9 Jun 2026US 12,649,959 B2Carbon Technology Holdings, LLC
- Method for simultaneously injecting a fuel gas and an oxygen-rich gas into a unit14 Apr 2026US 12,601,022 B2SMS group GmbH
- Molten metal component estimation device, method of estimating molten metal component, and method of manufacturing molten metal23 Apr 2024US 11,966,669 B2Jfe Steel Corporation
- Lance nozzle16 Apr 2024US 11,959,147 B2Jfe Steel Corporation
- Methods for Improved Carbon Endpoint Determination25 Dec 2025US 2025/0388987 A1
- Biomass pyrolysis integrated with bio-reduction of metal ores, hydrogen production, and/or activated-carbon production12 Jun 2025US 2025/0188565 A1
- Furnace slag amount estimation device, furnace slag amount estimation method, and molten steel production method28 Nov 2024US 2024/0393159 A1Jfe Steel Corporation
- Method for operating converter and method for producing molten steel23 May 2024US 2024/0167112 A1Jfe Steel Corporation
- Molten iron refining method7 Mar 2024US 2024/0076754 A1Jfe Steel Corporation
Most cited
By later US patents
- Process for the direct production of steel37US 4,053,301 AHazen Research, Inc. · 1977
- Method for recycling oily mill scale18US 4,585,475 AInland Steel Company · 1986
- Method and apparatus for the acceleration of solid particles entrained in a carrier gas16US 4,603,810 AArbed S.A. · 1986
- Process for the production of intermediate hot metal12US 4,111,687 AConsolidated Natural Gas Service Company, Inc. · 1978
- Argon in the basic oxygen process to control slopping12US 4,210,442 AUnion Carbide Corporation · 1980