F25J 3/04557
For pig iron or steel making
Official title: {for pig iron or steel making, e.g. blast furnace, Corex}
F25J3/04557 (For pig iron or steel making) appears on 43 US grants and 24 published applications in this corpus.
Search patents in F25J- Granted patents
- 43
- Published applications
- 24
- Assignees
- 14
- Inventors
- 80
- Latest grant
- 22 Apr 2014
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 3 | 0 |
| 1994 | 4 | 0 |
| 1995 | 1 | 0 |
| 1996 | 5 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 3 | 0 |
| 2000 | 7 | 0 |
| 2001 | 3 | 0 |
| 2002 | 0 | 2 |
| 2003 | 3 | 2 |
| 2004 | 2 | 1 |
| 2005 | 0 | 2 |
| 2006 | 0 | 0 |
| 2007 | 0 | 2 |
| 2008 | 0 | 2 |
| 2009 | 1 | 2 |
| 2010 | 1 | 2 |
| 2011 | 1 | 4 |
| 2012 | 2 | 4 |
| 2013 | 1 | 0 |
| 2014 | 1 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Method of integrating a blast furnace with an air gas separation unit22 Apr 2014US 8,702,837 B2L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Blast furnace iron production with integrated power generation15 Oct 2013US 8,557,173 B2Air Products and Chemicals, Inc.
- System and apparatus for providing low pressure and low purity oxygen20 Mar 2012US 8,136,369 B2Air Liquide Process & Construction, Inc.
- Blast furnace iron production with integrated power generation13 Mar 2012US 8,133,298 B2Air Products and Chemicals, Inc.
- Thermal integration of oxygen plants29 Nov 2011US 8,065,879 B2L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Method and System for Using a Target Gas Provided by a Gas Decomposition Device9 May 2019US 2019/0137173 A1Fritz Winter Eisengiesserei GmbH & Co. KG
- Method of integrating a blast furnace with an air gas separation unit8 Nov 2012US 2012/0280436 A1L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Method for Removing CO2 From Exhaust Gases, Such as Exhaust Gases From Plants for Producing Raw Iron or Exhaust Gases From Syngas Plants20 Sep 2012US 2012/0237421 A1
- Method and facility for producing oxygen through air distillation5 Jul 2012US 2012/0167622 A1L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Blast Furnace Iron Production with Integrated Power Generation9 Feb 2012US 2012/0032378 A1Air Products and Chemicals, Inc.
Most cited
By later US patents
- Blast furnace iron production with integrated power generation70US 8,133,298 B2Air Products and Chemicals, Inc. · 2012
- Combined installation of a metal production unit and a unit for the separation of air gas31US 5,538,534 AL Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude · 1996
- Use of nitrogen from an air separation plant in carbon dioxide removal from a feed gas to a further process25US 5,582,029 AAir Products and Chemicals, Inc. · 1996
- Air separation in combination with a chemical process22US 5,076,837 AThe BOC Group, Inc. · 1991
- Process for gaining electric energy in addition to producing molten pig iron and an arrangement for carrying out the process21US 4,861,369 AKorf Engineering GmbH · 1989