Y10S 8/915
Amino sulfonic acids
Y10S8/915 (Amino sulfonic acids) appears on 4 US grants and 0 published applications in this corpus.
Search patents in Y10S- Granted patents
- 4
- Published applications
- 0
- Assignees
- 4
- Inventors
- 10
- Latest grant
- 26 Oct 1999
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 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 | 2 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Amine modified sulfonated lignin for disperse dye26 Oct 1999US 5,972,047 AWestvaco Corporation
- Composition for dyeing human hair comprising a cationic dye, a zwitterionic surfactant, and an anionic UV-absorber7 Sep 1999US 5,948,124 AKao Corporation
- Process for the whitening of textile fibres of polyesters8 Nov 1977US 4,057,387 ABayer Aktiengesellschaft
- Levelling auxiliaries for acid dyes1 Mar 1977US 4,009,997 ABASF SE
No published applications in this class yet.
Most cited
By later US patents
- Amine modified sulfonated lignin for disperse dye17US 5,972,047 AWestvaco Corporation · 1999
- Composition for dyeing human hair comprising a cationic dye, a zwitterionic surfactant, and an anionic UV-absorber8US 5,948,124 AKao Corporation · 1999
- Levelling auxiliaries for acid dyes1US 4,009,997 ABASF SE · 1977