D06L 4/664
Preparations of optical brighteners
Official title: Preparations of optical brighteners; Optical brighteners in aerosol form; Physical treatment of optical brighteners
D06L4/664 (Preparations of optical brighteners) appears on 117 US grants and 10 published applications in this corpus.
Search patents in D06L- Granted patents
- 117
- Published applications
- 10
- Assignees
- 31
- Inventors
- 212
- Latest grant
- 24 Apr 2012
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 10 | 0 |
| 1977 | 9 | 0 |
| 1978 | 8 | 0 |
| 1979 | 3 | 0 |
| 1980 | 12 | 0 |
| 1981 | 7 | 0 |
| 1982 | 10 | 0 |
| 1983 | 9 | 0 |
| 1984 | 9 | 0 |
| 1985 | 8 | 0 |
| 1986 | 1 | 0 |
| 1987 | 3 | 0 |
| 1988 | 3 | 0 |
| 1989 | 0 | 0 |
| 1990 | 4 | 0 |
| 1991 | 6 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 1 |
| 2004 | 4 | 3 |
| 2005 | 2 | 2 |
| 2006 | 0 | 1 |
| 2007 | 1 | 2 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Storage-stable fluorescent whitener formulations24 Apr 2012US 8,163,688 B2BASF SE
- Aqueous liquid formulations of pyrazoline brighteners27 Nov 2007US 7,300,474 B2Clariant Produkte (Deutschland) GmbH
- Fluorescent brightener pigment compositions30 Aug 2005US 6,936,078 B2Albemarle Corporation
- Optical brighteners compositions their production and their use10 May 2005US 6,890,454 B2Clariant Finance (BVI) Limited
- Mixtures of fluorescent whitening agents31 Aug 2004US 6,783,698 B1Ciba Specialty Chemicals Corporation
- Method For Optical Brightening Of Synthetic Fibres Or Of Synthetic Fibres Mixed With Natural Fibres6 Sep 2007US 2007/0204410 A1BASF SE
- Storage-stable fluorescent whitener formulations3 May 2007US 2007/0094814 A1BASF SE
- Crystalline modification22 Jun 2006US 2006/0135398 A1
- Aqueous liquid formulations of pyrazoline brighteners17 Nov 2005US 2005/0251931 A1Clariant Produkte (Deutschland) GmbH
- Method of enhancing a fabric article14 Apr 2005US 2005/0076453 A1
Most cited
By later US patents
- Foams for treating fabrics67US 4,099,913 AUnion Carbide Corporation · 1978
- Stable composition for treating textile substrates47US 4,460,374 ACiba-Geigy Corporation · 1984
- Stable composition for treating textile substrates34US 4,559,150 ACiba-Geigy Corporation · 1985
- Aqueous dyestuff preparations of dyestuffs insoluble to difficultly soluble in water28US 3,977,828 ACiba-Geigy Corporation · 1976
- Water-soluble complexes of optical brighteners and quaternary ammonium compounds which are substantially free from unwanted salts27US 5,948,153 AMilliken & Company · 1999