Inventor
Detlef Szeymies
Inventor
Kurten, DE
Overview
Patents· 4 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. pigments60%
C07DHeterocyclic compounds20%
C11DDetergent compositions20%
PatentTitleYear
6,613,104'Process for preparing dyes and/or brightener formulations'20036,241,786'Process for preparing dyes and/or brightener formulations'20016,025,490'Process for the preparation of substituted 4,4\'-diaminostilbene-2,2\'-disulphonic acids'20004,778,603'Process for the preparation of a concentrated aqueous reactive dyestuff solution'1988Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1988–2003Patents assigned to BAYER AG (4)· patent assignee history
1988Based in Kuerten, DE· patent location history
2000–2001Based in Kurten, DE· patent location history
2003Based in Krten, DE· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| BAYER AG | 4 | 1988–2003 |
Locations
| Location | Patents | Span |
|---|---|---|
| Kurten, DE | 2 | 2000–2001 |
| Krten, DE | 1 | 2003 |
| Kuerten, DE | 1 | 1988 |