D06P 3/3033
Using basic dyes
Official title: {using basic dyes}
D06P3/3033 (Using basic dyes) appears on 2 US grants and 0 published applications in this corpus.
Search patents in D06P- Granted patents
- 2
- Published applications
- 0
- Assignees
- 1
- Inventors
- 2
- Latest grant
- 2 Jul 2002
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 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 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- 2-(p-sulphophenyl)amino-1,3,5-triazine derivative and the salt of alkali metal thereof, a process for the preparation and their use as an auxiliary of cationic dye2 Jul 2002US 6,413,281 B1
- Use of certain quaternary ammonium compounds in dyeing leather with basic dyestuffs10 Jan 1989US 4,797,131 ASandoz Ltd.
No published applications in this class yet.
Most cited
By later US patents