Inventor
Alex Nicopoulos
Inventor
Basel, CH
Overview
Patents· 5 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C09Bprimary
C09BOrganic dyes or closely-related compounds for producing dyes, e.g. pigments56%
D06PDyeing or printing textiles22%
C07DHeterocyclic compounds11%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests11%
PatentTitleYear
5,917,035'Oxazine dyes, their preparation and the use thereof'19995,284,939'Process for the preparation of highly concentrated solutions of cationic azo dyes'19944,777,266'Process for the preparation of anthraquinoid disperse dyes and mixtures thereof'19884,536,185'Liquid preparation of cationic dye mixture containing aliphatic carboxylic acid for black dyeing'19854,018,763'Process for the manufacture of basic oxazine dyes'1977Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1977–1994Patents assigned to CIBA GEIGY CORP (4)· patent assignee history
1977–1999Based in Basel, CH· patent location history
1999Patents assigned to CIBA SC HOLDING AG (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| CIBA GEIGY CORP | 4 | 1977–1994 |
| CIBA SC HOLDING AG | 1 | 1999 |
Locations
| Location | Patents | Span |
|---|---|---|
| Basel, CH | 5 | 1977–1999 |