C01B 21/149
Stabilisation
Official title: {Stabilisation}
C01B21/149 (Stabilisation) appears on 20 US grants and 7 published applications in this corpus.
Search patents in C01B- Granted patents
- 20
- Published applications
- 7
- Assignees
- 10
- Inventors
- 36
- Latest grant
- 13 Apr 2010
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 2 | 2 |
| 2004 | 1 | 2 |
| 2005 | 1 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 1 | 1 |
| 2009 | 2 | 1 |
| 2010 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Stabilizer and method for stabilizing hydroxylamine, and stabilized hydroxylamine solution13 Apr 2010US 7,696,377 B2Showa Denko K. K.
- Stabilized hydroxylamine solutions28 Apr 2009US 7,524,989 B2BASF SE
- Process for producing hydroxylamine17 Feb 2009US 7,491,846 B2Showa Denko K. K.
- Preparation of a high purity and high concentration hydroxylamine free base8 Jul 2008US 7,396,519 B2San Fu Chemical Co., Ltd.
- Preparation and purification of hydroxylamine stabilizers15 Mar 2005US 6,867,327 B2BASF SE
- Stabilizer and method for stabilizing hydroxylamine, and stabilized hydroxylamine solution12 Feb 2009US 2009/0043125 A1Showa Denko K. K.
- Process for Producing Hydroxylamine14 Aug 2008US 2008/0193362 A1Showa Denko K. K.
- Preparation of a high purity and high concentration hydroxylamine free base28 Jul 2005US 2005/0163694 A1San Fu Chemical Co., Ltd.
- Stabilized hydroxylamine solutions2 Dec 2004US 2004/0242931 A1BASF SE
- Preparation and purification of hydroxylamine stabilizers17 Jun 2004US 2004/0116735 A1BASF SE
Most cited
By later US patents
- Pyridine and pyridone stabilizers for hydroxylammonium nitrate and hydroxylamine-containing compositions13US 5,703,323 AOlin Corporation · 1997
- Stabilization of hydroxylamine solutions10US 5,808,150 AConcept Sciences, Inc. · 1998
- Stabilized solutions of hydroxylamine or its salts in water or alcohols, and their preparation9US 4,629,613 ABASF SE · 1986
- Stabilized solutions of hydroxylamine or its salts in water or alcohols, and their preparation8US 4,634,584 ABASF SE · 1987
- Process for producing hydroxylamine8US 7,491,846 B2Showa Denko K. K. · 2009