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D06P 3/3246

Using vat, sulfur or indigo dyes

Official title: {using vat, sulfur or indigo dyes}

D06P3/3246 (Using vat, sulfur or indigo dyes) appears on 7 US grants and 5 published applications in this corpus.

Search patents in D06P

Granted patents: 7
Published applications: 5
Assignees: 6
Inventors: 21
Latest grant: 26 Aug 2025

Filings by year

D06P 3/3246: granted patents and published applications per publication year
Year	Granted patents	Published applications
1988	2	0
1989	0	0
1990	0	0
1991	0	0
1992	0	0
1993	2	0
1994	0	0
1995	1	0
1996	0	0
1997	0	0
1998	0	0
1999	0	0
2000	0	0
2001	0	0
2002	0	0
2003	0	0
2004	0	0
2005	0	0
2006	0	0
2007	0	0
2008	0	0
2009	0	0
2010	0	0
2011	0	0
2012	0	0
2013	0	1
2014	0	0
2015	0	0
2016	0	0
2017	0	0
2018	0	0
2019	0	0
2020	0	0
2021	0	1
2022	0	1
2023	0	0
2024	1	1
2025	1	1

By publication year. Applications have been published since 2001.

Recent patents

Process for dyeing textiles and enzymes used therein26 Aug 2025US 12,398,509 B2Sanko Tekstil Isletmeleri San. Ve Tic. A. S.
Process for dyeing textiles and enzymes used therein5 Mar 2024US 11,920,290 B2Sanko Tekstil Isletmeleri San. Ve Tic. A. S.
Surface-active compounds based on modified castor oil fatty substances30 May 1995US 5,420,315 AHoechst Aktiengesellschaft
Dyeing leather: exhaustion process using combination of pigment dispersion and aqueous solution of water-soluble sulfur dye31 Aug 1993US 5,240,463 AHoechst Aktiengesellschaft
Dyeing leather with water-insoluble sulphur dyes31 Aug 1993US 5,240,466 ACasella Aktiengesellschaft

Most cited

By later US patents