C09B 35/64
Higher polyazo dyes
Official title: Higher polyazo dyes, e.g. of the types [IMAGE cpc-sch-C09B-1025.gif]
C09B35/64 (Higher polyazo dyes) appears on 16 US grants and 3 published applications in this corpus.
Search patents in C09B- Granted patents
- 16
- Published applications
- 3
- Assignees
- 12
- Inventors
- 44
- Latest grant
- 3 Apr 2007
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 4 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 2 | 2 |
| 2007 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Ink jet black ink, ink set, ink jet recording method, ink cartridge, recording unit and ink jet recording apparatus3 Apr 2007US 7,198,665 B2Canon Kabushiki Kaisha
- Ink jet black ink, ink set, ink jet recording method, ink cartridge, recording unit, and ink jet recording apparatus5 Dec 2006US 7,144,452 B2Canon Kabushiki Kaisha
- Printing process using specified AZO compounds6 Jun 2006US 7,056,376 B2Avecia Limited
- Azo dyes, their preparation and their use12 Dec 2000US 6,160,101 ACiba Specialty Chemicals Corporation
- Oligomer azo colorants28 Nov 2000US 6,153,734 ABASF SE
- Ink jet black ink, ink set, ink jet recording method, ink cartridge, recording unit, and ink jet recording apparatus20 Jul 2006US 2006/0156952 A1Canon Kabushiki Kaisha
- Ink jet black ink, ink set, ink jet recording method, ink cartridge, recording unit and ink jet recording apparatus18 May 2006US 2006/0102048 A1Canon Kabushiki Kaisha
- Printing process using specified AZO compounds5 Feb 2004US 2004/0020404 A1Avecia Limited
Most cited
By later US patents
- Ink jet black ink, ink set, ink jet recording method, ink cartridge, recording unit, and ink jet recording apparatus33US 7,144,452 B2Canon Kabushiki Kaisha · 2006
- Ink jet black ink, ink set, ink jet recording method, ink cartridge, recording unit and ink jet recording apparatus27US 7,198,665 B2Canon Kabushiki Kaisha · 2007
- Photosensitive member for electrophotography comprising azo pigments18US 4,666,810 ACanon Kabushiki Kaisha · 1987
- Dichroic dyes having a plurality of azo bonding groups11US 4,179,395 AGeneral Electric Company · 1979
- Photosensitive composition comprising azo compounds11US 4,612,271 AFuji Photo Film Co., Ltd. · 1986