C01B 13/0292
Preparation from air using a molten phase containing alkali metal nitrite, optionally
Official title: {Preparation from air using a molten phase containing alkali metal nitrite, optionally together with other oxygen acceptors}
C01B13/0292 (Preparation from air using a molten phase containing alkali metal nitrite, optionally) appears on 10 US grants and 1 published applications in this corpus.
Search patents in C01B- Granted patents
- 10
- Published applications
- 1
- Assignees
- 2
- Inventors
- 10
- Latest grant
- 29 Jan 1991
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 3 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 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 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Iron aluminides and nickel aluminides as materials for chemical air separation29 Jan 1991US 4,988,488 AAir Products and Chemicals, Inc.
- Liquid phase thermal swing chemical air separation24 May 1988US 4,746,502 AAir Products and Chemicals, Inc.
- Cascade heat recovery with coproduct gas production14 Oct 1986US 4,617,182 AAir Products and Chemicals, Inc.
- Air separation with temperature and pressure swing21 Jan 1986US 4,565,685 AAir Products and Chemicals, Inc.
- Oxygen/nitrogen production with molten alkali salts16 Jul 1985US 4,529,577 AAir Products and Chemicals, Inc.
Most cited
By later US patents
- Oxygen production by molten alkali metal salts32US 4,340,578 A1982
- Separation of oxygen from gaseous mixtures with molten alkali metal salts28US 4,132,766 A1979
- Nitrogen and oxygen via chemical air separation24US 4,287,170 A1981
- Oxygen/nitrogen production with molten alkali salts17US 4,529,577 AAir Products and Chemicals, Inc. · 1985
- Cascade heat recovery with coproduct gas production15US 4,617,182 AAir Products and Chemicals, Inc. · 1986